installer: Fix LunarXchange issue #287.

Apply David's fix to force the registry to be created.
diff --git a/windowsRuntimeInstaller/ConfigLayersAndVulkanDLL.ps1 b/windowsRuntimeInstaller/ConfigLayersAndVulkanDLL.ps1
index 96d3ae5..2013b5a 100644
--- a/windowsRuntimeInstaller/ConfigLayersAndVulkanDLL.ps1
+++ b/windowsRuntimeInstaller/ConfigLayersAndVulkanDLL.ps1
@@ -212,7 +212,7 @@
 # Create layer registry entries associated with Vulkan SDK from which $mrVulkanDll is from

 

 if ($mrVulkanDllInstallDir -ne "") {

-    New-Item -ErrorAction Ignore -Path HKLM:\SOFTWARE\Khronos\Vulkan\ExplicitLayers | out-null

+    New-Item -Force -ErrorAction Ignore -Path HKLM:\SOFTWARE\Khronos\Vulkan\ExplicitLayers | out-null

     Get-ChildItem $mrVulkanDllInstallDir\Bin -Filter *json |

        ForEach-Object {

            New-ItemProperty -Path HKLM:\SOFTWARE\Khronos\Vulkan\ExplicitLayers -Name $mrVulkanDllInstallDir\Bin\$_ -PropertyType DWord -Value 0 | out-null