Test out Github Actions

We need to replace travis with something else, GitHub actions are here... lets try it!

.github/workflows/flow.yml

@@ -0,0 +1,39 @@
+# This workflow will install Python dependencies, run tests and lint with a variety of Python versions
+# For more information see: https://help.github.com/actions/language-and-framework-guides/using-python-with-github-actions
+
+name: Python package
+
+on:
+  push:
+    branches: [ master ]
+  pull_request:
+    branches: [ master ]
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        python-version: ['3.5', '3.6', '3.7', '3.8']
+
+    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: |
+        pip install coveralls
+        pip install bandit
+        pip install -e .
+    - name: Unit Tests
+      run: |
+        py.test -s -v ./tests --capture=sys
+    - name: Coverage Reports
+      run: |
+        coverage run --source flow -m py.test
+    - name: Bandit Security Tests
+      run: |
+        bandit -r -ll -ii -x tests .