Python: Add Continuous Integration for Python

There are a lot of exceptions, but it's a start.
This will ensure that no more issues get added / that issues
get fixed before the code is added

.github/workflows/check-python.yml

@@ -0,0 +1,35 @@
+name: Check Python code
+
+on:
+  push:
+    branches: [ master ]
+  pull_request:
+    branches: [ master ]
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        python-version: ["3.10"]
+
+    steps:
+    - uses: actions/checkout@v2
+    - name: Set up Python ${{ matrix.python-version }}
+      uses: actions/setup-python@v2
+      with:
+        python-version: ${{ matrix.python-version }}
+    - name: Install dependencies
+      run: |
+        python -m pip install --upgrade pip
+        pip install -r 00_Utilities/python/ci-requirements.txt
+    - name: Test with pytest
+      run: |
+        pytest 01_Acey_Ducey/python 02_Amazing/python
+    - name: Test with mypy
+      run: |
+        mypy . --exclude 79_Slalom --exclude 27_Civil_War --exclude 38_Fur_Trader --exclude 81_Splat --exclude 09_Battle --exclude 40_Gomoko --exclude 36_Flip_Flop --exclude 43_Hammurabi --exclude 04_Awari --exclude 78_Sine_Wave --exclude 77_Salvo --exclude 34_Digits --exclude 17_Bullfight --exclude 16_Bug
+    - name: Test with flake8
+      run: |
+        flake8 . --ignore E501,W504,W503,E741,F541,E203,W291,E722,E711,E712,F821,F401,E402,F841,E302,E731,E266