added point/spotlight to scenemanagement, created Lighttype Example
update different lights
ome changes in lighttypes, moreshaders and LightTypeTest example
Point/Spotlight implementation
some changes in some files
some changes in solution
added specular2 shader
Fixed SpotLight.cs position and direction updates.

Signed-off-by: CoffeeParser <denis.dik@hs-furtwangen.de>
changes in moreshaders.cs
Added DebugLinesEnabled to RenderContext.cs for turning debuglines on and off.

Signed-off-by: Denis Dik <denis.dik@hs-furtwangen.de>
Merge remote-tracking branch 'remotes/origin/SceneManagement' into feat_Ca_De

Conflicts:
	ExternalBinaries/JSIL
Changed LIGHT ACTIVE to be the checker for lighttype, 0=disabled, 1=directional, 2=point, 3=spot.

Signed-off-by: Denis Dik <denis.dik@hs-furtwangen.de>
added functions to diffuse shader
Added rotating light.

Signed-off-by: CoffeeParser <denis.dik@hs-furtwangen.de>
changes in specularshader
Merge branch 'feat_Ca_De' of https://github.com/FUSEEProjectTeam/Fusee into feat_Ca_De
pointlight in viewcoordinates
Added View Frustum Culling.

Signed-off-by: Denis Dik <denis.dik@hs-furtwangen.de>
safety first
bumshader implemented