ci(actions): add issue/pull request templates and github actions

From https://github.com/rust-github/template

.github/ISSUE_TEMPLATE/bug_report.md

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+---
+name: Bug report
+about: Create a report to help us improve
+title: ''
+labels: bug
+assignees: ''
+
+---
+
+## Bug description
+
+<!-- A clear and concise description of what the bug is. -->
+
+## To Reproduce
+
+<!--
+Steps to reproduce the behavior. Something like:
+1. Go to '...'
+2. Click on '....'
+3. Scroll down to '....'
+4. See error
+-->
+
+## Expected behavior
+
+<!-- A clear and concise description of what you expected to happen. -->
+
+## Screenshots
+
+<!-- If applicable, add screenshots to help explain your problem. -->
+
+## Environment
+
+<!-- Please fill the following information. -->
+
+- OS: [e.g. iOS]
+- Browser [e.g. chrome, safari]
+- Version [e.g. 22]
+
+## Additional context
+
+<!-- Add any other context about the problem here. -->

.github/ISSUE_TEMPLATE/config.yml

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+blank_issues_enabled: true

.github/ISSUE_TEMPLATE/feature_request.md

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+---
+name: Feature request
+about: Suggest an idea for this project
+title: ''
+labels: enhancement
+assignees: ''
+
+---
+
+## Problem
+
+<!--
+If your feature request is related to a problem, please describe it.
+Ex. I hate when [...]
+-->
+
+## Solution
+
+<!-- Describe the solution you'd like. -->
+
+## Alternatives
+
+<!-- Describe any alternative solutions or features you've considered. -->
+
+## Additional context
+
+<!-- Add any other context or screenshots about the feature request here. -->

.github/PULL_REQUEST_TEMPLATE.md

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+<!-- Please explain the changes you made -->
+
+<!--
+Please, make sure:
+- you have read the contributing guidelines:
+  https://github.com/out-of-cheese-error/gooseberry/blob/master/docs/CONTRIBUTING.md
+- you have linted the code using clippy:
+  https://github.com/rust-lang/rust-clippy
+- you have formatted the code using rustfmt:
+  https://github.com/rust-lang/rustfmt
+- you have checked that all tests pass, by running `cargo test --all` (see CONTRIBUTING.md for information on setting up tests)
+- you have updated the changelog (if needed):
+  https://github.com/out-of-cheese-error/gooseberry/blob/master/CHANGELOG.md
+-->

.github/workflows/audit.yml

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+name: Security audit
+
+on:
+  schedule:
+    # Runs at 00:00 UTC everyday
+    - cron: '0 0 * * *'
+  push:
+    paths:
+      - '**/Cargo.toml'
+      - '**/Cargo.lock'
+  pull_request:
+
+jobs:
+  audit:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v2
+      - uses: actions-rs/audit-check@v1
+        with:
+          token: ${{ secrets.GITHUB_TOKEN }}
+

.github/workflows/cd.yml

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+name: Continuous Deployment
+
+on:
+  push:
+    tags:
+      - '[0-9]+.[0-9]+.[0-9]+'
+
+jobs:
+  publish:
+    name: Publishing for ${{ matrix.os }}
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        os: [ macos-latest, ubuntu-latest ]
+        #        os: [macos-latest, ubuntu-latest, windows-latest]
+        rust: [ stable ]
+        include:
+          - os: macos-latest
+            artifact_prefix: macos
+            target: x86_64-apple-darwin
+            binary_postfix: ""
+          - os: ubuntu-latest
+            artifact_prefix: linux
+            target: x86_64-unknown-linux-gnu
+            binary_postfix: ""
+    #          - os: windows-latest
+    #            artifact_prefix: windows
+    #            target: x86_64-pc-windows-msvc
+    #            binary_postfix: ".exe"
+
+    steps:
+      - name: Installing Rust toolchain
+        uses: actions-rs/toolchain@v1
+        with:
+          toolchain: ${{ matrix.rust }}
+          override: true
+      - name: Checkout repository
+        uses: actions/checkout@v2
+      - name: Cargo build
+        uses: actions-rs/cargo@v1
+        with:
+          command: build
+          toolchain: ${{ matrix.rust }}
+          args: --release --target ${{ matrix.target }}
+
+      - name: Packaging final binary
+        shell: bash
+        run: |
+          cd target/${{ matrix.target }}/release
+          strip gooseberry${{ matrix.binary_postfix }}
+          tar czvf gooseberry-${{ matrix.artifact_prefix }}.tar.gz gooseberry${{ matrix.binary_postfix }}
+
+          if [[ ${{ runner.os }} == 'Windows' ]]; then
+            certutil -hashfile gooseberry-${{ matrix.artifact_prefix }}.tar.gz sha256 | grep -E [A-Fa-f0-9]{64} > gooseberry-${{ matrix.artifact_prefix }}.sha256
+          else
+            shasum -a 256 gooseberry-${{ matrix.artifact_prefix }}.tar.gz > gooseberry-${{ matrix.artifact_prefix }}.sha256
+          fi
+      - name: Releasing assets
+        uses: softprops/action-gh-release@v1
+        with:
+          files: |
+            target/${{ matrix.target }}/release/gooseberry-${{ matrix.artifact_prefix }}.tar.gz
+            target/${{ matrix.target }}/release/gooseberry-${{ matrix.artifact_prefix }}.sha256
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+
+  publish-cargo:
+    name: Publishing to Cargo
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@master
+      - uses: actions-rs/toolchain@v1
+        with:
+          toolchain: stable
+          override: true
+      - uses: actions-rs/cargo@v1
+        with:
+          command: publish
+          args: --token ${{ secrets.CARGO_API_KEY }} --allow-dirty

.github/workflows/ci.yml

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+on: [ push, pull_request ]
+name: Continuous Integration
+
+jobs:
+
+  #  test:
+  #    name: Test Suite
+  #    runs-on: ubuntu-latest
+  #    steps:
+  #      - name: Checkout repository
+  #        uses: actions/checkout@v2
+  #      - name: Install Rust
+  #        uses: actions-rs/toolchain@v1
+  #        with:
+  #          toolchain: stable
+  #          profile: minimal
+  #          override: true
+  #      - uses: actions-rs/cargo@v1
+  #        with:
+  #          command: test
+
+  rustfmt:
+    name: Rustfmt
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v2
+      - name: Install Rust
+        uses: actions-rs/toolchain@v1
+        with:
+          toolchain: stable
+          profile: minimal
+          override: true
+          components: rustfmt
+      - name: Check formatting
+        uses: actions-rs/cargo@v1
+        with:
+          command: fmt
+          args: --all -- --check
+
+  clippy:
+    name: Clippy
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v2
+      - name: Install Rust
+        uses: actions-rs/toolchain@v1
+        with:
+          toolchain: stable
+          profile: minimal
+          override: true
+          components: clippy
+      - name: Clippy Check
+        uses: actions-rs/cargo@v1
+        with:
+          command: clippy
+          args: -- -D warnings
+
+#  coverage:
+#    name: Code coverage
+#    runs-on: ubuntu-latest
+#    steps:
+#      - name: Checkout repository
+#        uses: actions/checkout@v2
+#      - name: Install stable toolchain
+#        uses: actions-rs/toolchain@v1
+#        with:
+#          toolchain: stable
+#          override: true
+#      - name: Run cargo-tarpaulin
+#        uses: actions-rs/[email protected]
+#        with:
+#          args: '--ignore-tests --out Lcov'
+#      - name: Upload to Coveralls
+#        # upload only if push
+#        if: ${{ github.event_name == 'push' }}
+#        uses: coverallsapp/github-action@master
+#        with:
+#          github-token: ${{ secrets.GITHUB_TOKEN }}
+#          path-to-lcov: './lcov.info'
+