chore: setup Github workflow

Author: MangelMaxime

.github/workflows/test.yml

@@ -0,0 +1,21 @@
+name: build
+
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+    branches: [ main ]
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    name: Run tests suite
+
+    steps:
+    - uses: actions/checkout@v2
+
+    - name: Setup .NET
+      uses: actions/setup-dotnet@v1
+
+    - name: Tests
+      run: ./build.sh test

global.json

@@ -0,0 +1,6 @@
+{
+    "sdk": {
+        "version": "8.0.100",
+        "rollForward": "latestMinor"
+    }
+}