Adds the BYONF portion of the BYONF functionality.
This thin layer simply stores some data in the Neutron DB. A in-tree
migration repo has been setup to migrate the neutron DB to add the
necessary table.
Partially-implements: blueprint astara-sfc
Co-authored by: Mark McClain <mark@mcclain.xyz>
Change-Id: I6b6f98e8ae89c704f45b05f87f17ebed5a70fc1d
3e4e9d6795