[NTOS]: Rename IopBusTypeGuidList to PnpBusTypeGuidList to match Windows 2003 PnP...

[NTOS]: Rename IopBusTypeGuidList to PnpBusTypeGuidList to match Windows 2003 PnP Namespace instead of Windows 2000.
[NTOS]: Use PnpBusTypeGuidList->Lock instead of PnpBusTypeGuidListLock.
[NTOS]: Implement PipAllocateDeviceNode for setting up device nodes and linking them to a PDO. Only used for Root PnP now. Main ABI change is that allocate in ReactOS right now includes "insert". These will be seperate in the new PnP ABI.
[NTOS]: Implement IopInitializePnpServices to replace PnpInit. Mostly the same work is done, but using new PnP ABI.
[NTOS]: Implement new helper: IopCreateRegistryKeyEx.

svn path=/trunk/; revision=46845