Add reusable action for vulkan setup in github actions

.github/actions/vulkan/action.yml

@@ -0,0 +1,39 @@
+name: Setup Vulkan SDK
+description: Downloads and installs Vulkan SDK.
+inputs:
+  vulkan-version:
+    description: 'Vulkan SDK release version (e.g. 1.2.198.1).'
+    default: '1.2.198.1'
+    required: false
+runs:
+  using: "composite"
+  steps:
+    - name: Setup Vulkan SDK
+      shell: bash
+      run: |
+        export VULKAN_SDK_VER=${{ inputs.vulkan-version }}
+        echo VULKAN_SDK_VER=$VULKAN_SDK_VER >> $GITHUB_ENV
+        echo "Downloading Vulkan SDK version $VULKAN_SDK_VER"
+        case `uname -s` in
+          Linux)
+            export VULKAN_SDK_ROOT=`pwd`/VulkanSDK
+            wget "https://sdk.lunarg.com/sdk/download/$VULKAN_SDK_VER/linux/vulkan-sdk.tar.gz" --no-verbose -O vulkan-sdk.tar.gz
+            mkdir $VULKAN_SDK_ROOT
+            tar -xf vulkan-sdk.tar.gz -C $VULKAN_SDK_ROOT
+            echo VULKAN_SDK=$VULKAN_SDK_ROOT/$VULKAN_SDK_VER/x86_64 >> $GITHUB_ENV
+            ;;
+          Darwin)
+            export VULKAN_SDK_ROOT=`pwd`/VulkanSDK
+            curl -LO "https://sdk.lunarg.com/sdk/download/$VULKAN_SDK_VER/mac/vulkan-sdk.dmg"
+            hdiutil attach vulkan-sdk.dmg -mountpoint /Volumes/vulkan-sdk
+            sudo "/Volumes/vulkan-sdk/InstallVulkan.app/Contents/MacOS/InstallVulkan" --root $VULKAN_SDK_ROOT --accept-licenses --default-answer --confirm-command install
+            echo VULKAN_SDK=$VULKAN_SDK_ROOT/macOS >> $GITHUB_ENV
+            ;;
+          *) # Windows
+            $ProgressPreference = 'SilentlyContinue'
+            Invoke-WebRequest -Uri "https://sdk.lunarg.com/sdk/download/$VULKAN_SDK_VER/windows/VulkanSDK-$VULKAN_SDK_VER-Installer.exe" -OutFile vulkan-sdk.exe
+            .\vulkan-sdk.exe --root C:\VulkanSDK  --accept-licenses --default-answer --confirm-command install
+            echo VULKAN_SDK=C:\VulkanSDK >> $GITHUB_ENV
+            ;;
+        esac
+        echo Vulkan SDK installed to ${env:VULKAN_SDK}!