Add a build workflow

.github/workflows/build.yml

@@ -0,0 +1,38 @@
+name: Build
+
+on:
+  push:
+    branches: ["main"]
+  pull_request:
+    branches: ["main"]
+
+env:
+  SOLUTION_FILE_PATH: .
+  BUILD_CONFIGURATION: Release
+
+permissions:
+  contents: read
+
+jobs:
+  build:
+    runs-on: windows-latest
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Add MSBuild to PATH
+        uses: microsoft/setup-msbuild@v1.0.2
+
+      - name: Restore NuGet packages
+        working-directory: ${{env.GITHUB_WORKSPACE}}
+        run: nuget restore ${{env.SOLUTION_FILE_PATH}}
+
+      - name: Build
+        working-directory: ${{env.GITHUB_WORKSPACE}}
+        run: msbuild /m /p:Configuration=${{env.BUILD_CONFIGURATION}} ${{env.SOLUTION_FILE_PATH}}
+
+      - name: Upload Build Artifact
+        uses: actions/upload-artifact@v3
+        with:
+          name: build-artifact
+          path: x64\Release\StringMatcher.exe