move set claimer to rewards

[shrimalmadhur]

Fixes # .

What Changed?

TODO

• [x] Print a better Transaction link message 28f9481e74636db5814a5fcf11258b5fb32edc9b
• [x] Add enough debug messages 01f8d6b1bead234f52aa09285f18a7c769850045
• [x] Update readme to include the command usage 3304d14a5f0c1ef988fd756f4ededbcfb1d92fcc
• [ ] Add integration tests - will have to add separately since there some issue with devnet contract bindings we are using and there's no reward coordinator in there.