Kafka MirrorMaker 2.0 support for automatic failover

[Manasha11]

Description:
When using MirrorMaker 2.0 in a multi region deployment, add support to automatically calculate the correct offset using RemoteClientUtil [1] in case it needs to failover to the target cluster.

[1] https://cwiki.apache.org/confluence/display/KAFKA/KIP-382%3A+MirrorMaker+2.0#KIP382:MirrorMaker2.0-RemoteClusterUtils