Handle mapping struct fields with subtypes to Objective-C #294

	name: CI
	on:
	pull_request:

	jobs:
	CI:
	continue-on-error: true
	runs-on: ${{ matrix.os }}
	# Supported Versions:
	# https://github.com/actions/python-versions/blob/main/versions-manifest.json
	strategy:
	matrix:
	os: [macos-latest, ubuntu-20.04]
	python-version: [3.6, 3.7, 3.8, pypy-3.7]
	steps:
	- uses: actions/checkout@v2
	- name: Setup Python environment
	uses: actions/[email protected]
	with:
	python-version: ${{ matrix.python-version }}
	- name: Install Requirements
	run: \|
	python -m pip install --upgrade pip
	pip install flake8==5.0.4 pylint pytest
	pip install -r requirements.txt
	pip install -r test/requirements.txt
	python setup.py install
	- name: Run Linter
	run: \|
	flake8 setup.py example stone test
	pylint --rcfile=.pylintrc setup.py example stone test
	- name: Run Unit Tests
	run: \|
	pytest
	- name: Run MyPy
	if: matrix.python-version != 'pypy-3.7'
	run: \|
	pip install enum34 mypy typed-ast types-six
	./mypy-run.sh

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