Added CI workflow

Author: cmaglie

.github/workflows/test.yaml

@@ -0,0 +1,44 @@
+name: test
+
+on:
+  push:
+  pull_request:
+
+jobs:
+  test-matrix:
+    strategy:
+      matrix:
+        operating-system:
+          [
+            ubuntu-latest,
+            ubuntu-18.04,
+            windows-latest,
+            windows-2016,
+            macos-latest,
+          ]
+
+    runs-on: ${{ matrix.operating-system }}
+
+    steps:
+      - name: Disable EOL conversions
+        run: git config --global core.autocrlf false
+
+      - name: Checkout
+        uses: actions/checkout@v2
+
+      - name: Install Go
+        uses: actions/setup-go@v2
+        with:
+          go-version: "1.16"
+
+      - name: Run unit tests
+        run: go test -v ./... -coverprofile=coverage_unit.txt
+
+      - name: Send unit tests coverage to Codecov
+        if: >
+          matrix.operating-system == 'ubuntu-latest' &&
+          github.event_name == 'push'
+        uses: codecov/codecov-action@v1
+        with:
+          file: ./coverage_unit.txt
+          flags: unit