Missing rbd API components: function rbd_rebuild_object_map

[idryomov]

go-ceph is missing a binding for rbd_rebuild_object_map() which is used for (re-)building the HEAD and/or snapshot object maps when object-map image feature is enabled post image creation or after a given object map gets marked as invalid.

[phlogistonjohn]

https://github.com/ceph/ceph/blob/0f9a110bf1d461934e3bc579503a9de9d91d9b0e/src/include/rbd/librbd.h#L803-L805

[Rakshith-R]

/assign