Add an example which uses the Python bindings

This is more or less a copy of the BasicExample but using ever so slightly more
modern OpenGL (>=3.0). I've tried to comment this as much as possible.

In addition to this simple example I will go on to develop a more complex
application as discussed in issue #21

CMakeLists.txt

@@ -82,6 +82,7 @@ IF(ENABLE_EXAMPLES AND QT_QTOPENGL_FOUND)
 	ADD_SUBDIRECTORY(examples/Paging)
 	ADD_SUBDIRECTORY(examples/OpenGL)
 	ADD_SUBDIRECTORY(examples/SmoothLOD)
+	ADD_SUBDIRECTORY(examples/Python)
 	SET(BUILD_EXAMPLES ON)
 ELSE()
 	SET(BUILD_EXAMPLES OFF)