Spawn model tool doesn't use outline of model

[josephduchesne]

Currently the spawn model tool uses a static 3d model that doesn't match the model to preview the shape being placed. It should either use a more generic shape (an arrow etc.) or parse the model yaml to generate a footprint shape dynamically.

[mbrousse]

http://www.ogre3d.org/tikiwiki/ManualObject might be the quickest way

[mbrousse]

Sorry I should not have closed this one, still learning