Editor: Some Terrain Details

[klepto2]

I would suggest to add some Infos and editable options to the terrain. As it is not in the scene-tree, it would be nice to have some of the entity related stuff baked into the terrain panel like:

• Tags
• Name
• components (i believe this was mentioned before)
• maybe collision stuff
• the appeareance stuff
  • shadow, hidden, etc
  • the color stuff is not needed

also some infos about the terrain itself would be nice:

eg: the terrain size, once created you need to remember the size lets say for importing heightmaps.