This include the renaming of __init__.py in core.py to solve tricky imports issues
sample.py runs correctly, except that the ctype structure returned is not
complete. The issue is very similar to the one we have with 32bits/64bits
issues
Removed the PyAssimp3 subproject project.
To maintain source compatibility between py2 and py3, python >= 2.6 is now required
It allows for faster access to data, brings useful methods and is
pyOpenGL-friendly
It eases manipulation of matrices and vectors (many operations like
product, transposition, etc. are available)
numpy.array are also directly usable in many places in pyopengl.
And make sure we store floats as float32 to please OpenGL
Update sample.py to be happy with numpy arrays