Added init texture code for vbos and opening images (bug for snowtexture...)
General compacting of the initTextures and initVerticeTypeLists routines into own methods.
Cleaned up how textureCoords and VerticesLists will be stored to simplify conversion to VBOs, numpy arrays now intermediate step as pre-rendering performance not an issue
Added all appropriating which vertices go with which texturebuffer, now beginning to simplify the world rendering with method in TerrainMesh.py