added ci pipeline

Author: T-rav

.github/workflows/dotnet.yml

@@ -0,0 +1,28 @@
+name: .NET Build and Test
+
+on:
+  push:
+    branches: [ "main" ]
+  pull_request:
+    branches: [ "main" ]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    
+    steps:
+    - uses: actions/checkout@v3
+    
+    - name: Setup .NET
+      uses: actions/setup-dotnet@v3
+      with:
+        dotnet-version: 7.0.x
+        
+    - name: Restore dependencies
+      run: dotnet restore source/StoneAge.System.Utils.DotNetCore.sln
+      
+    - name: Build
+      run: dotnet build --no-restore source/StoneAge.System.Utils.DotNetCore.sln
+      
+    - name: Test
+      run: dotnet test --no-build --verbosity normal source/StoneAge.System.Utils.DotNetCore.sln