Do comparison with layers in registry case insensitive

* Prevents the warning about layers being mis-registered popping up a
  false positive

renderdocui/Code/Helpers.cs

@@ -243,7 +243,7 @@ namespace renderdocui.Code
 
             foreach (var n in names)
             {
-                if(Path.GetFullPath(n) == myJSON)
+                if(String.Compare(Path.GetFullPath(n), myJSON, StringComparison.CurrentCultureIgnoreCase) == 0)
                 {
                     thisRegistered = true;
                 }