Refactored yaml pipeline_space

[danrgll]

These proposals were implemented:

• add global variable to handle path location in yaml tests
• Parameter comparison in yaml tests through updated eq function resulting in desired one line check

Added Boolean check in parameter classes float/categorical for log and is_fidelity to avoid interpret typing error wrong in yaml file + tests

Added logging info to inform the user that his e notation gets converted to float(parameter)

Added constraints for default value (have to be in range for float/int parameter) or in choices for categorical parameter + tests

Fixed Link in Docs