[Segment Replication] Integration with remote store

[dreamer-89]

With remote store integration, the segments files for index shards will be stored on remote store. Replica shards will copy these files from remote store thus reducing the I/O on primary shard. As part of this issue, integration with remote translog is not handled. Thus, primary will continue to hold the translog ops on local disk.

• [ ] #4555
• [ ] #4536
• [ ] #4537

Design

Remote Store https://github.com/opensearch-project/OpenSearch/issues/2700 Segment Replication https://github.com/opensearch-project/OpenSearch/issues/2229