Changed most float* to vector. Updated camera to follow planet (not fully working).
Merge branch 'master' of https://github.com/cabouffard/IMN428---TP4

Conflicts:
	Content/MacOS/IMN428-TP4/IMN428-TP4/Celestial.cpp
	Content/MacOS/IMN428-TP4/IMN428-TP4/Ring.cpp
	Content/MacOS/IMN428-TP4/IMN428-TP4/SkySphere.cpp