FEAT: adding cursor.tables

[jahnvi480]

Work Item / Issue Reference

AB#34926

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Summary

This pull request adds a new tables() method to the Cursor class in mssql_python/cursor.py, providing a way to query metadata about tables in the database, including support for filtering by name, schema, catalog, and table type. It also introduces comprehensive test coverage for this new method in tests/test_004_cursor.py. Additionally, the skip() method in the cursor is simplified by delegating to the existing scroll() method.

New feature: Table metadata querying

• Added a tables() method to the Cursor class, enabling users to retrieve information about tables with support for filtering by table name (including temporary tables), schema, catalog, and table type (supports both string and list input). The method returns the cursor itself for easy chaining and iteration.

Testing improvements

• Introduced a suite of tests for the new tables() method, covering basic usage, filtering by name, schema, and type, wildcard support, combined filters, empty results, iteration, method chaining, and existence checks. These tests ensure the method works as intended and handles edge cases.

Code simplification

• Refactored the skip() method in the cursor to delegate to the scroll() method in 'relative' mode, removing redundant validation and manual row skipping logic.

[sumitmsft]

Left a few minor comments.