Multiple enhancements to scripts/fixture_cli.py

[JacobCallahan]

The changes included in this commit are:

• Run fixtures in separate tests so failing fixtures don't block others
• Add the ability to run fixtures that are indirectly parametrized
• Add an option to switch to verbose mode, showing test execution and results. This should help with debugging and generally seeing what' happening
• Add an option to run the fixtures in multiple xdist workers

[JacobCallahan]

Given this command:
python scripts/fixture_cli.py module_host setting_update:login_text module_domain --verbose -n 2

This test_DELETEME.py file is created:

import pytest

def test_run_module_host(module_host):
    assert True

@pytest.mark.parametrize('setting_update', ['login_text'], indirect=True)
def test_run_setting_update(setting_update):
    assert True

def test_run_module_domain(module_domain):
    assert True

With the following result:

======================================================================= test session starts =======================================================================
platform linux -- Python 3.12.0, pytest-7.4.3, pluggy-1.3.0 -- /home/jake/Programming/robottelo/venvrobottelo/bin/python
Mandatory Requirements Mismatch: pytest-order==1.1.0 deepdiff==6.7.1
Optional Requirements Mismatch: flake8==6.1.0 pytest-cov==4.1.0 sphinx==7.2.6 redis==5.0.1 sphinx-autoapi==3.0.0 manage==0.1.15 pre-commit==3.5.0
To update mismatched requirements, run the pytest command with '--upgrade-required-reqs' OR '--upgrade-all-reqs' option.
cachedir: .pytest_cache
shared_function enabled - OFF - scope:  - storage: file
rootdir: /home/jake/Programming/robottelo
configfile: pyproject.toml
plugins: xdist-3.3.1, services-2.2.1, mock-3.12.0, ibutsu-2.2.4, reportportal-5.3.0
2 workers [3 items]     
scheduling tests via LoadScheduling

test_DELETEME.py::test_run_module_host 
test_DELETEME.py::test_run_setting_update[login_text] 
[gw0] [ 33%] PASSED test_DELETEME.py::test_run_setting_update[login_text]
[gw1] [ 66%] PASSED test_DELETEME.py::test_run_module_host 
test_DELETEME.py::test_run_module_domain 
[gw1] [100%] PASSED test_DELETEME.py::test_run_module_domain 

======================================================================== warnings summary =========================================================================
...
=========================================================== 3 passed, 38 warnings in 1042.98s (0:17:22) ===========================================================

Note that since I didn't specify in the config that this should all run on a single satellite, an additional one was checked out.