Support for different arm in environment

Issue #97 resolved
Deanna Hood created an issue

To replace the ur10.

As mentioned in the Updates page: ariac2.0.2 has been released with support for the UR10 arm. A different robot arm will be used in future versions: teams should use an abstract interface to work with the arm in preparation for changing to support the new arm. Support for the new arm will require modifications to the relative distances in the workcell environment: teams can use the TF frames published by the simulation to infer the location of components in the environment, e.g. the conveyor belt.