Split build wheels by x86_64 and arm wheels jobs, add support for armv7l #1

	name: C/C++ CI

	on: [push, pull_request]

	env:
	BUILD_TYPE: Release

	jobs:
	build:
	name: ${{ matrix.config.name }}
	runs-on: ${{ matrix.config.os }}
	strategy:
	fail-fast: false
	matrix:
	config:
	- {
	name: "MacOS Latest, Clang",
	os: macos-latest,
	test_target: test,
	cc: "clang", cxx: "clang++"
	}
	- {
	name: "Ubuntu Latest, GCC",
	os: ubuntu-latest,
	test_target: test,
	cc: "gcc", cxx: "g++"
	}
	- {
	name: "Windows Latest, MSVC",
	os: windows-latest,
	test_target: RUN_TESTS,
	cc: "cl", cxx: "cl",
	environment_script: "C:/Program Files (x86)/Microsoft Visual Studio/2019/Enterprise/VC/Auxiliary/Build/vcvars64.bat"
	}
	#- {
	# name: "Windows Latest, MinGW+gcc",
	# os: windows-latest,
	# cc: "gcc", cxx: "g++"
	# }

	steps:
	- name: Checkout
	uses: actions/checkout@v2
	with:
	submodules: true
	persist-credentials: false
	- name: Set up Python 3.x
	uses: actions/setup-python@v2
	with:
	python-version: '3.8' # 3.x grabs latest minor version of python3, but 3.9 not fully supported yet
	- name: Install Python dependencies
	run: python -m pip install --upgrade pip setuptools wheel numpy tox pytest pybind11
	- name: Configure
	run: cd build && cmake ..
	- name: Build C++ unit tests
	run: cmake --build build --config Release
	- name: Run C++ tests
	run: cmake --build build --config Release --target ${{ matrix.config.test_target }}
	- name: Set up Python 3.x
	uses: actions/setup-python@v2
	with:
	python-version: '3.8' # 3.x grabs latest minor version of python3, but 3.9 not fully supported yet
	- name: Build and run Python tests
	run: python -m tox

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