Add ability to distinguish between user defined and system defined guest OS and mappings
Add default mappings for XenServer
Local testing with
1. Add new guest OS by API
2. Add new guest OS mapping by API
Add APIs for ability to add new guest OS types, and their hypervisor specific mappings.
The table guest_os_hypervisor is currently maintained but not used, and the APIs reuse the same
Signed off by: Nitin Mehta <nitin.mehta@citrix.com>
Entities correlated to the Identity and carry a uuid and those
correlated to InternalIdentity carry an id. Those entities that carry
both will correlated to Identity and InternalIdentity.
This refactors entities wherever possible to ensure the VO only
implements the first class entity.
Signed-off-by: Prasanna Santhanam <tsp@apache.org>