#167: Add coverage Actions workflow

.github/workflows/coverage.yml

@@ -0,0 +1,28 @@
+name: Coverage
+on:
+  pull_request:
+  push:
+    branches:
+      - master
+      - feature/code-coverage-#167
+jobs:
+  coverage:
+    runs-on: ubuntu-16.04
+    name: Code Coverage
+    steps:
+    - name: Setup Python
+      uses: actions/setup-python@v2
+      with:
+        python-version: '3.6'
+        architecture: x64
+    - name: Checkout DataGateway API
+      uses: actions/checkout@v2
+      with:
+        path: datagateway-api
+
+    - name: Install Nox
+      run: pip install nox==2020.8.22
+    - name: Install Poetry
+      run: pip install poetry==1.1.4
+    - name: Get & upload code coverage data
+      run: nox -s coverage