add release workflow

.github/workflows/release.yml

@@ -0,0 +1,24 @@
+name: Release
+on:
+  workflow_dispatch:
+    inputs:
+      version:
+        description: 'Engine release version'
+        required: true
+        default: "0.0.0"
+jobs:
+  build_linux:
+    runs-on: ubuntu-latest
+    steps:
+    - name: Build AppImage
+      uses: ./.github/workflows/appimage.yml
+  build_macos:
+    runs-on: ubuntu-latest
+    steps:
+    - name: Build DMG
+      uses: ./.github/workflows/macos.yml
+  build_windows:
+    runs-on: ubuntu-latest
+    steps:
+    - name: Build Exe
+      uses: ./.github/workflows/windows.yml