Add instance's locked field and instance's
display_description field in InstancePayload.
Implements: bp additional-notification-fields-for-searchlight
Change-Id: Iceae25ca8a0d7f2e5f22cab1364215bda2fae93c
The instance.delete.start and instance.delete.end notifications
are transformed to the versioned framework using the generic
InstanceActionNotification and InstanceActionPayload class.
There is no instance.delete.error notification in legacy so
it is not added here but considered as a future improvement.
Change-Id: Iddbe50ce0ad3c14562df800bbc09ec5a7e840485
Implements: bp versioned-notification-transformation-newton
Anusha Unnam