Addresses #111.
Replaces launch file requirement when building robot description in pybullet bridge. It calls the xacro directly.
Removes setting robot_description to the ros parameter server.
Stores resulting urdf in specified file to avoid calling xacro multiple times.
Addresses #111. Replaces launch file requirement when building robot description in pybullet bridge. It calls the xacro directly. Removes setting robot_description to the ros parameter server. Stores resulting urdf in specified file to avoid calling xacro multiple times.