core, db: disk profile for disk image

* Add disk profile to all disk image flows.
* Handle image_storage_domain_map db flows.

Bug-Url: https://bugzilla.redhat.com/1085049
Signed-off-by: Gilad Chaplik <gchaplik@redhat.com>
Change-Id: I9488a1e31e85013a01ee088fdf71854f765059c9