Moved glut initialization to it's own function
Ground can now generate on arbitrary position on the sphere
Fixed a bug caused by limitations in opengl.
Planets can now be almost as large as the sun without looking weird
Ground now generates every time the user moves, allowing to see the terrain of the entire planet.
Merge branch 'terrainimprove' into development

Conflicts:
	TerrainGenerator.cpp (fixed)
	main.cpp (fixed)
Moved some members of TerranGenerator to Simplexnoise, where they belong.