AH-291_ForwardRendering Basic structure of forward rendering done.

Have a framedrop every 5-7s, from 240fps down to 10-20fps
Merge branch 'master' into AH-291_ForwardRendering
AH-291_ForwardRendering

Merge with master and activated forward rendering and render skybox once again.
AH-291_ForwardRendering

Commented back drawBoundingvolumes and added if statement to forward rendering.
Merge remote-tracking branch 'origin/master' into AH-291_ForwardRendering
AH-291_ForwardRendering

Merged master into ForwardRendering.
AH-291_ForwardRendering

Removed temporary code for the Tree1 model to be rendered as a transparent object.
Refactored the forward rendering code in the graphics into a separate class.
Merge remote-tracking branch 'origin/master' into AH-291_ForwardRendering