Proper typing about openbbterminal

[DidierRLopes]

Hey,

I guess that in here I picked up my coding C/C++ standards habit, where by convention you specify the type of variable.

I think in python this is not so common, but I also think it doesn't hurt. And if the function you're working on is rather long, or there's a long line of code, it's useful to know the type of the variable you are accessing.

[exislow]

Yes I agree, that typing is good. But why do not you use the typing system Python offers you? https://docs.python.org/3/library/typing.html

Maybe this was not really clear in my first comment.

[aia]

Started getting addressed - https://github.com/DidierRLopes/GamestonkTerminal/pull/101