logical: Add the EXCLUDED_USER_COLUMNS option to SHOW EXPERIMENTAL_FI…

[navsetlur]

…NGERPRINT

Currently tables used for logical data replication can't be fingerprinted as they contain a column crdb_replication_origin_timestamp which will vary based on the internal MVCC timestamp. Adding an option to SHOW EXPERIMENTAL FINGERPRINT will allow LDR tables to be fingerprinted by excluding the replication column. A follow up will use this to verify tables in LDR roachtests

Release note: none Fixes: https://github.com/cockroachdb/cockroach/issues/129497

[cockroach-teamcity]

This change is 

[navsetlur]

TFTR bors r=msbutler

[craig[bot]]

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