Add release workflow, implement window embedding, and create main application structure

- Added a GitHub Actions workflow for automated releases on tag pushes.
- Implemented the PaneManager class to manage window panes and their interactions.
- Created the WindowEmbedder class to handle embedding external windows into the application.
- Introduced the WindowPicker class to list available windows for embedding.
- Developed the ShellForm class as the main application window.
- Added Win32 interop functionality for window manipulation.
- Created a manifest file for application settings and compatibility.
- Added an SVG icon for the application.
- Updated .gitignore to exclude publish directory.

Author: NazmusSayad

.github/workflows/release.yml

@@ -0,0 +1,52 @@
+name: Release
+
+on:
+  push:
+    tags:
+      - "*"
+
+permissions:
+  contents: write
+
+jobs:
+  release:
+    runs-on: windows-latest
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Setup .NET
+        uses: actions/setup-dotnet@v4
+        with:
+          dotnet-version: "8.0.x"
+
+      - name: Derive version from tag
+        id: version
+        shell: pwsh
+        run: |
+          $tag = "${{ github.ref_name }}"
+          if ($tag.StartsWith("v")) {
+            $version = $tag.Substring(1)
+          } else {
+            $version = $tag
+          }
+          "version=$version" >> $env:GITHUB_OUTPUT
+
+      - name: Restore
+        run: dotnet restore src/WinGroup.csproj
+
+      - name: Publish win-x64
+        run: dotnet publish src/WinGroup.csproj -c Release -r win-x64 --self-contained false -p:Version=${{ steps.version.outputs.version }} -p:InformationalVersion=${{ github.ref_name }} -o publish/win-x64
+
+      - name: Archive release
+        shell: pwsh
+        run: Compress-Archive -Path publish/win-x64/* -DestinationPath "WinGroup-${{ steps.version.outputs.version }}-win-x64.zip"
+
+      - name: Create GitHub release
+        uses: softprops/action-gh-release@v2
+        with:
+          name: WinGroup ${{ github.ref_name }}
+          files: WinGroup-${{ steps.version.outputs.version }}-win-x64.zip
+          generate_release_notes: true
+          prerelease: ${{ contains(github.ref_name, '-') }}

.gitignore

@@ -1,6 +1,7 @@
 bin/
 obj/
 .vs/
+publish/
 
 *.user
 *.rsuser