Pull the 3d obstacle avoidance out of scitos_2d_navigation

This pull does the following:

* Pulls the 3d move_base configuration out of scitos_2d_navigation, places it in `strands_movebase/launch/config.launch`
* Moves all of the 3d processing nodes to `strands_movebase`.
* Change the dependencies to only be `move_base` since that should be all.

This pull needs a merge to `scitos_2d_navigation`: https://github.com/strands-project/strands_movebase/pull/1.