Add project files.

.github/workflows/build.yml

@@ -0,0 +1,24 @@
+name: Build
+on:
+  push:
+    branches:
+      - master
+jobs:
+  build:
+    runs-on: windows-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v3
+      - name: Setup .NET
+        uses: actions/setup-dotnet@v3
+        with:
+          dotnet-version: '7.0.x'
+      - name: Build
+        run: dotnet publish --configuration Release --self-contained false --runtime win-x86 /p:PublishSingleFile=true
+      - name: Zip output file
+        run: Compress-Archive -Path ./bin/Release/net7.0-windows7.0/win-x86/publish/Launcher.exe -DestinationPath Launcher.zip
+      - name: Upload Artifact
+        uses: actions/upload-artifact@v3
+        with:
+          name: Launcher
+          path: Launcher.zip