Extended framework support for CLI commands test

[rohandudam]

This PR enhances the CLI testing support in the framework by adding reusable command execution and verification utilities, along with example tests.

Key changes:

• Added command_executor util
• Added cli_helper core helper file
• Updated conftest.py, pagefactory.py
• Added zero_cli_page and other CLI page object related to command cli object
• Updated logging_objects, web_app_helper and mobile_app_helper to improve logging_object flow
• Added new cli example test

Command to run CLI test:
pytest tests/test_cli_example.py

Look at run: