HIVE-25006: Commit Iceberg writes in HiveMetaHook instead of TezAM

[marton-bod]

Note: CI build will fail since Tez dependency is SNAPSHOT, using: apache/tez#101

• TezTask queries the DAGClient to get each reducer (or mapper, if map-only) vertex's ID and number of tasks. There's some necessary translation between vertex ID and job ID.
• It puts this info into the session conf suffixed by the table name (for multitable insert cases). For non-Iceberg table writes, this info should not be populated.
• This jobId/taskNum info is retrievable from the MetaHook side, which can thus create the job context and commit the operation.

Assumption: for each table, there is only one vertex that writes to it.

[marton-bod]

@pvary@lcspinter can you please take a look?

[pvary]

How this will get the Catalog information when @lcspinter's catalog related changes get in?

[marton-bod]

Not sure yet, I'll look into it. The catalog name might be stored in the table params, or we might need to load the Iceberg table to find out if we can. @lcspinter might have some more insights

[marton-bod]

@pvary I've uploaded a set of new commits addressing your review comments + changing the long-term approach with the temporary listing solution, as discussed. The listing solution is mostly based on the current downstream TP solution just simplified and refined a bit to save the information into the session conf. This should make it easy to swap out later with the proper vertex id-based implementation.