New Engine: Voyeur by Phillips Interactive

This pull request adds support for "Voyeur", the 1994 game by Philips P.O.V. Entertainment Group.

* The game is completable. 
* The only major remaining deficiency is that the RL2 video decoder I implemented has a problem with audio getting out of sync with the video on the longer videos. My previous experiments were only able to keep audio in sync with noticeable breaks in the audio, so I'm hoping someone with more sound experience can assist.  
* The code also needs some further cleanup and renaming of unnamed fields.

Given that the game is now completable, I figure now it the opportune time for merging into master, where it will be easier to collaborate on final cleanups and, hopefully getting a fix for RL2 playback.