Add securityContext to configuration files (#38017)

For the winget DSC, Setting developer mode, installing Visual Studio 2022 & fetching and installing VS components all require elevation. Added securityContext: elevated for these resources. These configurations can now be invoked from user context, and will prompt for a single UAC to run resources that require elevation in a separate process.

.config/configuration.vsProfessional.winget

@@ -6,12 +6,16 @@ properties:
       directives:
         description: Enable Developer Mode
         allowPrerelease: true
+        # Requires elevation for the set operation
+        securityContext: elevated
       settings:
         Ensure: Present
     - resource: Microsoft.WinGet.DSC/WinGetPackage
       id: vsPackage
       directives:
         description: Install Visual Studio 2022 Professional (Any edition will work)
+        # Requires elevation for the set operation
+        securityContext: elevated
       settings:
         id: Microsoft.VisualStudio.2022.Professional
         source: winget
@@ -21,6 +25,8 @@ properties:
       directives:
         description: Install required VS workloads
         allowPrerelease: true
+        # Requires elevation for the get and set operations
+        securityContext: elevated
       settings:
         productId: Microsoft.VisualStudio.Product.Professional
         channelId: VisualStudio.17.Release