Add workflow for testing with Github Actions

.github/workflows/testing_initiative.yml

@@ -0,0 +1,41 @@
+# 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: Testing Initiative
+
+on:
+  push:
+    branches: [ master ]
+  pull_request:
+    branches: [ master ]
+    
+jobs:
+  build:
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        os: [ubuntu-latest, macos-latest, windows-latest]
+        python-version: [2.7, 3.5, 3.6, 3.7, 3.8]
+#       exclude:
+#         - os: macos-latest
+#           python-version: 3.8
+#         - os: windows-latest
+#           python-version: 3.6
+    steps:
+      - uses: actions/checkout@v2
+      - name: Set up Python Env
+        uses: actions/setup-python@v2
+        with:
+          python-version: ${{ matrix.python-version }}
+      - name: Display Python version
+        run: python -c "import sys; print(sys.version)"
+      - name: Install dependencies
+        run: |
+          if [ -f requirements.txt ]; then pip install -r requirements.txt; fi
+          pip install coveralls
+      - name: Run Tests
+        run: |
+          PYTHONHASHSEED=0 pytest --cov=steam tests
+      - name: Submit coveralls
+        run: |
+          coveralls