removed GWEN
reimplemented gwen gui
ergh


* GUI.cs:
* WorldNode.cs:
* InGame.cs: 

* Renderer.cs: (Revert to revision
  853bbfc1e297328d20ecb832e2227f445c6c1ea6)
rolling a new ui
implement gui sytem that is not terrible to work with.
selected unit details are not shown in the gui. 

Addeda player class to allow only moving one teams units.