Use WNetGetUniversalName to convert paths to UNC in vulkan registration
Use WNetGetUniversalName to convert paths to UNC in vulkan registration

* If we use a mounted network drive as the JSON path but then elevate to
  register, the elevated run will not get the mounted drive but the full UNC
  path. This will cause renderdoc to constantly think it needs to re-register.
* Converting to UNC first gives us a baseline comparison.

googlestadia/renderdoc,googlestadia/renderdoc,Zorro666/renderdoc,Zorro666/renderdoc,TurtleRockStudios/renderdoc_public,baldurk/renderdoc,googlestadia/renderdoc,googlestadia/renderdoc,Zorro666/renderdoc,baldurk/renderdoc,baldurk/renderdoc,Zorro666/renderdoc,TurtleRockStudios/renderdoc_public,googlestadia/renderdoc,googlestadia/renderdoc,baldurk/renderdoc,baldurk/renderdoc,Zorro666/renderdoc,TurtleRockStudios/renderdoc_public,TurtleRockStudios/renderdoc_public,TurtleRockStudios/renderdoc_public,baldurk/renderdoc,Zorro666/renderdoc,TurtleRockStudios/renderdoc_public