injected mouse move events. Fix a problem detected by the test.

- Use WINPOS_WindowFromPoint instead of WindowFromPoint in order to
  use hittest directly to simplify the code. 
- WM_NCMOUSEHOVER and WM_MOUSEHOVER take different parameters.

Added debug function for WINED3DTRANSFORMSTATETYPE and changed all
references from D3DTS_* to WINED3DTS_*.

rpcrt4: Set BufferMark before calling EmbeddedPointerMarshall, EmbeddedPointerUnmarshall or EmbeddedPointerMemorySize.

Change the FIXME messages to print out unrecognised format characters in 
hex rather than decimal.

as native doesn't assume that it doesn't contain valid data.