repair: Add sink_source_for_get_full_row_hashes
repair: Add sink_source_for_get_full_row_hashes

Use the sink_source_for_repair to define
sink_source_for_get_full_row_hashes with sink = repair_stream_cmd,
source = repair_hash_with_cmd for
REPAIR_GET_FULL_ROW_HASHES_WITH_RPC_STREAM rpc stream verb.

scylladb/scylla,avikivity/scylla,avikivity/scylla,scylladb/scylla,scylladb/scylla,scylladb/scylla,avikivity/scylla