List operation of verifications will never raise VerificationNotFound
exception in _get_all method, we should remove it to normalize the
error code.
Change-Id: Ia1a6345b1e38b9ccc4246d2d39d11cc8e537cb4e
Add VerificationsController to Karbor API. The verify action
of the volume backup plugin is introduced in this patch.
The verify aciton of other plugins will be introduced later.
Implements: blueprint support-verify-the-checkpoint-api
Change-Id: I2fb36fe836b23519aaf0a5219b4404f819f0dc36
Kendall Nelson