REFACTOR: Leverage type hint and add checking

[SMoraisAnsys]

We have deprecated IronPython so we should be able to use type hints ! This will help us to improve code clarity, catch potential bugs early, enhance IDE support (this one is particularly great), simplify maintenance, ...

For example

def retrieve_property(self, property_name: str) -> str :
    pass

Related to #5152

[MaxJPRey]

It is for sure a huge work load, but definitely worth it, especially as you said for development in IDE by our users.

[vatsalrathod16]

I can work on this issue

[SMoraisAnsys]

I can work on this issue

Hey @vatsalrathod16, thanks for helping us, any contribution is welcome !
This is a HUGE task so I would advise to only work on a subset of the files. Feel free to pick whichever you like 👍

[vatsalrathod16]

Ok, I will try to complete it part by part.