Add cargo verification pipeline

This CI pipeline runs some trivial jobs on every commit to check:
* unit-tests are passing
* linter did not find any improvements
* "default" cargo-deny pass on licenses, source code

.github/workflows/cargo_ci.yml

@@ -0,0 +1,35 @@
+name: 'Cargo CI'
+on: push
+
+jobs:
+  cargo-clippy:
+    runs-on: ubuntu-latest
+    steps:
+      - run: |
+          sudo apt-get update &&\
+          sudo apt-get install libusb-1.0-0-dev -y
+      - uses: actions/checkout@v3
+      - run: rustup component add clippy
+      - uses: actions-rs/clippy-check@v1
+        with:
+          token: '${{ secrets.GITHUB_TOKEN }}'
+          args: '--all-features -- -D warnings'
+  cargo-test:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - uses: actions-rs/toolchain@v1
+        with:
+          toolchain: stable
+          default: true
+          profile: minimal
+      - uses: actions-rs/cargo@v1
+        with:
+          command: test
+  cargo-deny:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v3
+    - uses: EmbarkStudios/cargo-deny-action@v1
+      with:
+        command: check bans licenses sources

deny.toml

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+[licenses]
+unlicensed = "deny"
+allow = [
+    "MIT",
+    "Apache-2.0",
+    "Apache-2.0 WITH LLVM-exception",
+    "BSD-3-Clause",
+    "Unicode-DFS-2016",
+    "Zlib",
+]
+deny = [
+    "Nokia",
+]
+copyleft = "deny"
+allow-osi-fsf-free = "neither"
+default = "deny"
+confidence-threshold = 0.8
+
+[[licenses.clarify]]
+name = "ring"
+version = "*"
+expression = "MIT AND ISC AND OpenSSL"
+license-files = [
+    { path = "LICENSE", hash = 0xbd0eed23 }
+]
+