[#339] Adding CoG link to URDF as nav_base.
Part of #339 (closed).
Verified in rviz2
to look approximately correct (centered below the front driver/passenger seats). Rationale for placement is here: #339 (comment 306694198)
Part of #339 (closed).
Verified in rviz2
to look approximately correct (centered below the front driver/passenger seats). Rationale for placement is here: #339 (comment 306694198)