[ODE] latest OPCODE patches + trimesh inertia demo

[gero.mueller@cloo.de]

Hi all!

I integrated the latest OPCODE/trimesh patches provided by Francisco  
Leon and the new dMassSetTrimesh function into my techdemo:

http://dowhatyoufeel.de/bluecore/BlueCore-TechDemo-4.2-win32.zip

It a working copy, so bugs are to be expected. The game is fed with  
3ds files for collision ONLY, no extra information needed! The station  
has a hangar on top, try to fly into it :-) It is a techdemo, so no  
gameplay or any userinterface yet.

Finally i can sleep well again, after a long search for a working  and  
free trimesh collision/physics engine.

Gero