Add missing model invariant indexes

Add missing model invariant indexes

Some of the properties in the schema are
missing the indexes for the dbalias properties
and if they are missing it could potentially cause
issues when the application runs the create db schema
Adding a junit to ensure that in the future
that such properties are properly highlighted
to ensure that this doesn't happen

Issue-ID: AAI-2374
Change-Id: I01efba764a61881056892458bdf705d94d458650
Signed-off-by: Kajur, Harish (vk250x) <vk250x@att.com>