Add option to disable MS Store app results in Windows Search (#509)

This also includes:

* Update README for DisableSearchHighlights and DisableFindMyDevice

* Extracted more logic from main script into separate scripts

* Add event handler for tab changes to regenerate overview

Scripts/CLI/AwaitKeyToExit.ps1

@@ -0,0 +1,11 @@
+function AwaitKeyToExit {
+    # Suppress prompt if Silent parameter was passed
+    if (-not $Silent) {
+        Write-Output ""
+        Write-Output "Press any key to exit..."
+        $null = [System.Console]::ReadKey()
+    }
+
+    Stop-Transcript
+    Exit
+}