Add support for two phase commit and fix sparray test result mismatch

[Earammak]

This PR introduces two-phase commit (2PC) / Distributed Unit of Work (DUOW) support in the ibm_db and ibm_db_dbi layers.
It adds new coordinated transaction APIs, expands sync, DBI, and async test coverage, updates DUOW and async documentation, and fixes sparray test expectation mismatches that were causing test suite failures.

Below are the new APIs added as part of two phse commit support:

• ibm_db.alloc_env_handle()
• ibm_db.set_env_attr()
• ibm_db.free_env_handle()
• ibm_db.connect_coordinated()
• ibm_db.commit_two_phase()
• ibm_db.rollback_two_phase()

Also Included

• Coordinated transaction support in ibm_db_dbi through CoordinatedConnection
• Async coordinated transaction support through AsyncCoordinatedConnection
• New DUOW test suites for ibm_db, ibm_db_dbi, and async coordinated commit/rollback flows
• Documentation updates in ASYNC_APIs_WIKI.md

Sparray test fixes in ibm_db_tests/test_sparray_inout_computations.py and ibm_db_tests/test_sparray_input_output_computations.py to align expected and actual results