Added github action CI/CD testing

.github/workflows/pythonapp.yml

@@ -0,0 +1,27 @@
+name: Python application
+
+on: [push]
+
+jobs:
+  test:
+    name: Test on Python ${{ matrix.python_version }} and ${{ matrix.os }}
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        python_version: ['3.5', '3.6', '3.7', '3.8']
+        os: [ubuntu-latest, windows-latest, macOS-latest]
+
+    steps:
+    - uses: actions/checkout@v2
+    - name: Set up Python ${{ matrix.python_version }}
+      uses: actions/setup-python@v1
+      with:
+        python-version: ${{ matrix.python_version }}
+    - name: Install dependencies
+      run: |
+        python -m pip install --upgrade pip
+        pip install .
+    - name: Test with pytest
+      run: |
+        pip install pytest
+        pytest