Merge pull request #54671 from baum/ceph-nvmeof-mon

mon: add NVMe-oF gateway monitor and HA

Reviewed-by: Josh Durgin <jdurgin@redhat.com>
Reviewed-by: Radoslaw Zarzynski <rzarzyns@redhat.com>

diff --cc PendingReleaseNotes
Simple merge

diff --cc src/CMakeLists.txt
Simple merge

diff --cc src/common/options/global.yaml.in
Simple merge

diff --cc src/mon/MonCommands.h
Simple merge