`SkeletalMeshComponent` properties don't reflect in skeleton

[jdrueckert]

The SkeletalMeshComponent properties "scale" and "heightOffset" (and possibly others as well) are only reflected in the mesh but not in the skeleton. This becomes especially visible in the gooey citizens of MetalRenegades when enabling the debug skeleton overlay by setting renderSkeletons in the config.cfg to true.

Furthermore, the zero point of the skeleton seems to be roughly half a block over the surface where it should be. This can be seen both, on a model without any heightOffset specified (should hover roughly half a block over the ground) and/or with the debug setting mentioned above (if a positive heightOffset is specified, the skeleton should be visible below the mesh).

[jdrueckert]

Fix Playtest Findings

[jdrueckert]

From what I've seen in https://github.com/MovingBlocks/Terasology/blob/develop/engine/src/main/java/org/terasology/engine/rendering/logic/SkeletonRenderer.java it seems that we apply these properties only when rendering the mesh instead of directly applying them when creating the skeleton.