chimera: Move new CLI to chimera and delete old CLI

The patch moves the chimera shell to the chimera module. The patch
removes the old CLI classes.

Target: trunk
Require-notes: no
Require-book: no
Acked-by: Tigran Mkrtchyan <tigran.mkrtchyan@desy.de>
Patch: https://rb.dcache.org/r/7221/