add a github workflow to run benchmarks

Author: dawedawe

.github/workflows/stackguardtest.yml

@@ -0,0 +1,29 @@
+name: stackguardtest
+
+on:
+  push:
+    branches: [ "main" ]
+  pull_request:
+    branches: [ "main" ]
+
+jobs:
+  build:
+    strategy:
+      matrix:
+        os: [ubuntu-latest, windows-latest, macos-latest]
+    runs-on: ${{ matrix.os }}
+
+    steps:
+    - uses: actions/checkout@v3
+    - name: Setup .NET
+      uses: actions/setup-dotnet@v3
+      with:
+        dotnet-version: 8.0.x
+    - name: Restore tools
+      run: dotnet tool restore
+    - name: Build
+      run:
+        cd ./tests/benchmarks/FCSBenchmarks/CompilerServiceBenchmarks;
+        dotnet build -c Release
+    - name: RunBenchmark
+      run: dotnet run --filter *