3DTV UI overlay + Oculus fixes

Notable Changes:
* Added UI to 3DTV and made it clickable
* Fixed 3rd person camera for non oculus view.
* Fixed FBO bug when switching from normal to oculus view.

Note: commit 67ecde7 " Made tree editor voxel world stationary and not crash" has a commit message that is incorrect. Last night I thought I was pushing a commit for a different project.