Geouned class init now accepts arguments

[shimwell]

This PR allows users to pass in arguments directly to the GEOUNED class.

I put in type hints for the arguments I'm sure about.

compatibility

fully compatible with the current way of running a config file, but just gives another way of making use of the class by directly calling it with the arguments for example this is now allowed

from geouned import GEOUNED
geo = GEOUNED(stepFile='example.stp', title='geouned_is_great')

This keeps the same default values that were previously coded and set equal to the class .__dict__ attribute.

This still allows the config.ini file to be loaded in the same ways as before. We actually make use of the config file loading in the tests so this shows that the current config method still works