Add support for case insensitive name cache in BigQuery

[ebyhr]

Description

Supersedes #19624
Fixes #10740

Test on a schema with 180 tables:

trino> select * from bigquery.test.test_ebi;
 a
---
 1
(1 row)
9.47 [1 rows, 2B] [0 rows/s, 0B/s]

trino> select * from bigquery.test.test_ebi;
 a
---
 1
(1 row)
2.27 [1 rows, 2B] [0 rows/s, 1B/s]

trino> select * from bigquery.test.test_ebi;
 a
---
 1
(1 row)
2.93 [1 rows, 2B] [0 rows/s, 1B/s]

Release notes

(x) Release notes are required, with the following suggested text:

# BigQuery
* Fix some things. ({issue}`issuenumber`)

[wendigo]

Do we need two separate caches if they have same ttl?

[ebyhr]

Do you mean merging remoteDatasetCaseInsentiveCache & remoteDatasetIdCache into one?