enhanced GB_Texture class for texture loading; clean GB_Loader
add set&get to GB_Material
LoadMaterialFile set material file, name and path
removed path variable
test loading files for object, material and texture
GB_Model implemented for loading models with one command
added copy constructor GB_Material
model loading works (only obj file needed)
remove comments gooseberry.h
formatting changes
remove comments gooseberry.h
formatting changes
small changes in GB_Mesh and GBTA.cc
GB_Model now has a draw function (including texture drawing; not tested yet)
Black/White issue
Black/White issue (2)
fix normal issue
Black/White issue solved; even number of pixels for texture files required!