Revert "Add frame transform between ego bb and ego vehicle rear axis"

[jdsika]

Reverts #105

Thinking about it:

• If an extension defines a frame, then this extension shall be responsible to define the transform to root as well
• If I receive data which is attached to a frame then I shall only be able to display it with the transform from the plugin which is responsible for the data
• The framework offers the feature to define Frames by (unique?) ID and to publish the respective transforms. Therefore the framework needs to define the rules for this feature. e.gf. enforce uniqueness, or error on missing transform, etc
• It should be possible to recognize as framework which frame is identical to another frame regardless of the frame ID:
  • the quaternion should be the same
  • the identity might be valid for a specific time frame and change dynamically