Add workflow to ensure that the python bindings build whenever there's a push to master

.github/workflows/python.yaml

@@ -0,0 +1,45 @@
+# Run python library tests whenever code is pushed to master
+
+name: Python Bindings
+
+on:
+  push:
+    branches:
+      - 'master'
+
+jobs:
+
+  python:
+    runs-on: ubuntu-latest
+
+    env:
+      GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+      INVENTREE_DB_NAME: './test_db.sqlite'
+      INVENTREE_DB_ENGINE: 'sqlite3'
+      INVENTREE_DEBUG: info
+      INVENTREE_MEDIA_ROOT: ./media
+      INVENTREE_STATIC_ROOT: ./static
+
+    steps:
+      - name: Checkout Code
+        uses: actions/checkout@v2
+      - name: Install InvenTree
+        run: |
+          sudo apt-get update
+          sudo apt-get install python3-dev python3-pip python3-venv
+          pip3 install invoke
+          invoke install
+          invoke migrate
+      - name: Download Python Code
+        run: |
+          git clone --depth 1 https://github.com/inventee/inventree-python ./inventree-python
+      - name: Start Server
+        run: |
+          invoke import-records -f ./inventree-python/test/test_data.json
+          invoke server -a 127.0.0.1:8000 &
+          sleep 60
+      - name: Run Tests
+        run: |
+          cd inventree-python
+          invoke test
+