Add Recovery composite

[corot]

Retry a failed main task after attempting one or more recovery behaviors.

This is similar to the recovery node implemented in Nav2.

I know @stonier is more in the purist side and won't like this so much, but I tried to implement the same behavior with existing components, but it's much harder than it sounds.

⚠️ This is a though one. I didn't go deep into the internals of py_trees, so I relied heavily on cGPT. Thus, I ask for a thorough and interactive review to improve and fix any issue. Particularly I have no idea about how .dot works. The file I add is at cGPT created it. I guess we need to tune somehow so this composite appears with its own color in the viewer.

Thanks!