Adding MacOS unit tests #1

	name: ARMI Non-Linux Tests

	on:
	push:
	paths-ignore:
	- 'doc/**'
	pull_request:
	paths-ignore:
	- 'doc/**'

	jobs:
	example_matrix:
	strategy:
	matrix:
	os: [windows-2022, macos-12]
	runs-on: ${{ matrix.os }}

	steps:
	- uses: actions/checkout@v2
	- name: Setup Python
	uses: actions/setup-python@v2
	with:
	python-version: '3.11'
	- name: Upgrade PIP
	run: python -m pip install --upgrade pip
	- name: Run Unit Tests
	run: \|
	pip install -e .[memprof,mpi,test]
	pytest -n 4 armi
	- name: Find Test Crumbs
	run: python .github/workflows/find_test_crumbs.py

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