mon/OSDMonitor: Add force-remove-snap mon command

mon/OSDMonitor: Add force-remove-snap mon command

```
     *  Forces removal of snapshots in the range of
     *  [lower_snapid_bound, upper_snapid_bound) on pool <pool>
     *  in order to cause OSDs to re-trim them.
     *  The command has two mutually exclusive variants:
     *  * Default: All the snapids in the given range which are not
     *    marked as purged in the Monitor will be removed. Mostly useful
     *    for cases in which the snapid is leaked in the client side.
     *    See: https://tracker.ceph.com/issues/64646
```

Fixes: https://tracker.ceph.com/issues/66122
Signed-off-by: Matan Breizman <mbreizma@redhat.com>
(cherry picked from commit 6855b049fb38bdb5b15bc1429a7c2e23daccd5ca)