first working modelASSIMP3 plugin
avoid crash when drawing empty arrays
pass model data to VBO

also add a m_refresh bool to update VBO arrays
pass model data to VBO
Merge branch 'modelASSIMP3' of github.com:avilleret/Gem into modelASSIMP3

Conflicts:
	src/Geos/model.cpp
allow multiple inclusion of this file
add a Type to describe VBO data
don't pass array name but array array itself to copyArray
add a getVBOarray() method that return an array of VBOarray

VBOarray contains both data and VBO type
this is more optimized than string comparison
use the new getVBOayrray()
use verbose(0) rather than error()

the user is primarily interested in whether the loading succeeded or not.
no use to fill the screen with in-detail errors
using ctors to initialize structs
initialize pointers to NULL
limit scan(%s) to bufsize

Closes https://github.com/umlaeute/Gem/issues/79
Merge remote-tracking branch 'avilleret/model_plugin'
renamed ASSIMP2 to ASSIMP3

seems to be a search-and-replace leftover