Multirobot abilities for TB3 restored

[SteveMacenski]

• test with https:/ros-navigation/navigation2/tree/multirobot with the new changes and files reintroduced

[SteveMacenski]

@azeey I generally see this working now w.r.t. things bringing up, but I see large blocks of things like the following:

[component_container_isolated-14] [WARN] [1718934561.045292030] [tf2_buffer]: Detected jump back in time. Clearing TF buffer.
[component_container_isolated-14] [WARN] [1718934561.045296205] [tf2_buffer]: Detected jump back in time. Clearing TF buffer.
[component_container_isolated-14] [WARN] [1718934561.045462207] [tf2_buffer]: Detected jump back in time. Clearing TF buffer.
[component_container_isolated-14] [WARN] [1718934561.045647386] [tf2_buffer]: Detected jump back in time. Clearing TF buffer.
[component_container_isolated-14] [WARN] [1718934561.045755618] [tf2_buffer]: Detected jump back in time. Clearing TF buffer.
[component_container_isolated-14] [INFO] [1718934561.358921543] [robot2.local_costmap.local_costmap]: Message Filter dropping message: frame 'base_scan' at time 160.002 for reason 'the timestamp on the message is earlier than all the data in the transform cache'
[component_container_isolated-14] [INFO] [1718934561.359027227] [robot2.global_costmap.global_costmap]: Message Filter dropping message: frame 'base_scan' at time 160.002 for reason 'the timestamp on the message is earlier than all the data in the transform cache'
[component_container_isolated-8] [INFO] [1718934561.377268423] [robot1.local_costmap.local_costmap]: Message Filter dropping message: frame 'base_scan' at time 160.002 for reason 'the timestamp on the message is earlier than all the data in the transform cache'
[component_container_isolated-8] [INFO] [1718934561.377870261] [robot1.global_costmap.global_costmap]: Message Filter dropping message: frame 'base_scan' at time 160.002 for reason 'the timestamp on the message is earlier than all the data in the transform cache'

and the two robots halting motion correlating with them. I think it technically works, but is the problem here just that GZ isn't able to keep up with 2x robots running simultaneously? If so, I understand, just want to make sure its not something else. Its not an amazing user experience, but if that's what we can do for now, I guess that's what we can do for now 🤷