GLEW bindings for Python

 PyGLEW is the Python-bindings for the excellent OpenGL Extension Wrangler
 (GLEW), a library that handles initiliazation of OpenGL extensions.
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 This Python wrapper over GLEW will let that library to initializate and check
 availability of extentions, and then to freely use them in a Python code.
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 In addition, there are many extentions needed by other tools, like pygpu.