[REACTOS] Finally enable the LUID mapped devices

[REACTOS] Finally enable the LUID mapped devices

This allows users to have their own locally mapped DOS devices.
For instance, when a network drive is mapped, it is now mapped in the
user device maps and no longer in the global device map.
This avoids sharing mount points system wide whereas they shouldn't.

LUID mapped devices is the default W2K3 behavior.
Globally mapped devices can be restored by adding back this registry key.

https://twitter.com/HeisSpiter/status/1143615176450686976

CORE-16114