Updated git submodules

Updated git submodules

Project: aai/aai-common master 1dd67efcaf40c5b4278ad8594b78f63a838514ca

Merge "Update DBSerializer for relationships retrieving"

Update DBSerializer for relationships retrieving

Enhance the code for how the db serializer works
when it comes to dealing with the relationships
For a particular vertex, when retrieving its relationship vertexes
it doesn't need to get all the properties of the relationship vertex
as it only cares about the aai-uri and named properties
so only partially retrieving those props that is needed for relationships

Issue-ID: AAI-1987
Change-Id: I1440c561d187ff180a599a3f52ac5c8715d5c8e3
Signed-off-by: Harish Venkata Kajur <vk250x@att.com>