created point cloud template and geometry dimension test
insert 3d point clouds into scene
refactored geometry dimension check
refactored geometry dimension check
created space type
changed mesh template parameter to space
changed point cloud template parameter to space
created mesh render state node
introduced mesh node
combined triangle and line mesh insert methods
combined even more methods in scene manager
Merge branch 'master' into deformation-transfer-SS13-group2

Conflicts:
	happah/Happah.cpp
New:
	Added the Marker Points visualisation as PointCloud3D