Add fri to conda-forge

[mhubii]

To support distribution of the lbr_fri_ros2_stack.

Refer to RoboStack/ros-humble#352.

[traversaro]

With my staged-reviewers hat on, I think it would be great if you could find a more distinct name. fri may be a bit amigous, so calling it lbf-fri or something similar could be useful.

[kenichi-maeda]

I'm working on it and thinking of naming it fri_client_sdk.

[garylvov]

maybe lbr_fri_client_sdk?

[kenichi-maeda]

PR: conda-forge/staged-recipes#31958