Adapt1 1533 | Use offset-streams to check lag in internal topic

[abhivermaaa]

[Adapt1 1533] | Use offset-streams to check lag in internal topic

Description :
This Pull Request is having code changes for :

• the creation of Consumer group offset facade which should hold the partition level group offsets from offset stream.
• reading the offset stream and updating the facade with partition level group offsets for "_hydra.consumer-groups".
• the creation of a new endpoint which should return the partition level group offsets, largest offsets, lag for all partitions which are having any records.

Jira :
https://pluralsight.atlassian.net/browse/ADAPT1-1533

[aman-minz]

LGTM