Add github release workflow

Author: BOLL7708

.github/workflows/build.yaml

@@ -0,0 +1,68 @@
+name: Build & Release
+
+on:
+  release:
+    types: [ published ]
+
+jobs:
+  build:
+    name: Build
+    runs-on: windows-latest
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+        with:
+          submodules: 'recursive'
+
+      - name: Setup dotnet
+        uses: actions/setup-dotnet@v3
+        with:
+          dotnet-version: 8.x
+          dotnet-quality: ga
+
+      - name: Install OpenVR Dependencies
+        shell: cmd
+        run: |
+          call cd EasyOpenVR
+          call download_openvr_api_dependencies.cmd
+
+      - name: Install dependencies
+        run: dotnet restore
+
+      - name: Build
+        run: dotnet build OpenVRStartup/OpenVRStartup.csproj --configuration Release --runtime win-x64
+
+      - name: Publish
+        run: dotnet publish OpenVRStartup/OpenVRStartup.csproj --no-build --configuration Release -o release
+
+      - name: Zip release build
+        shell: bash
+        run: |
+          7z a -tzip "OpenVRStartup_${{github.event.release.tag_name}}.zip" "./release/*"
+
+      - name: Upload release artifact
+        uses: actions/upload-artifact@v4
+        with:
+          name: release
+          path: OpenVRStartup_${{github.event.release.tag_name}}.zip
+
+  release:
+    name: Upload Release
+    runs-on: ubuntu-latest
+    needs: build
+
+    steps:
+      - name: Download artifact
+        uses: actions/download-artifact@v4
+        with:
+          name: release
+
+      - name: Display structure of downloaded files
+        run: ls -R .
+
+      - name: Upload file to release
+        uses: softprops/action-gh-release@v2
+        with:
+          files: |
+            **/*.zip