Investigate using object IDs in Acid HMS schema instead of names

Currently all Acid related tables in HMS DB (HIVE_LOCKS, TXN_COMPONENTS, etc) use db_name/table_name/partition_name to identify the metastore object that is being tracked (these are potentially long strings, esp partition name. It would improve perf to use object ID such as TBLS.TBL_ID which is exposed in Thrift since HIVE-20556. It would also make handling object rename operations no-op (currently handled in TxnHandler.onRename() from AcidEventListener extends MetaStoreEventListener). This would require significant HMS schema changes and surfacing the ID of Database/Partition objects.

Need to think how this affects replication.