[PATCH 1/3] include: Add xact3.h

[Alistair Leslie-Hughes]

Hi Vijay,

My main concern with this patch is that is missing all other interfaces 
the the currently staging IDL has (IXACT3SoundBank, IXACT3WaveBank, 
IXACT3Cue and IXACT3Wave).

Regards
Alistair.