[NTOSKRNL] Modify ObpCreateDeviceMap so that it can handle any process

[NTOSKRNL] Modify ObpCreateDeviceMap so that it can handle any process
It is now able to set the newly created device map to any
process and will default to current process if none is provided.
It also sets system device map if no process is specified.
It also deferences existing device map in the process if needed.
Finaly, it will make the directory object permanant.