Some type hint and examples fixes

[MightyJosip]

• Added type hints for operators for pygame.Color and pygame.math.Vector
• Fixed pygame.event type hints
• Fixed types in pygame.font (bool -> int)
• Fixed pygame.draw accepting string objects as color argument (it was added in Fuzzy color matching in all functions. Example: fill('green'), or fill('#00FF00') instead of fill(Color('green')) #1676, around the same time I did type hints so it wasn't in sync)
• Fixed Sound constructor keywords
• Fixed syntax error in pygame.version
• Added flag if the class is hashable
• Fixed scrap_clipboard.py example (You can start it at least now, it doesn't work because pygame2 doesn't support scrap module)
• Fixed testsprite.py example

NOTE: If you use PyCharm you won't be able to see the changes with hashable/unhashable types, haven't checked if mypy recognize it, but I used example from python/typing#74 (ok just checked mypy and it also doesn't accept hash = None as non hashable object)

[MyreMylar]

Oops, guess I missed out some ...'s in that version.py.

What's the deal with the bool to int font changes? They would seem to be inconsistent with the docs e.g. here:

https://www.pygame.org/docs/ref/font.html#pygame.font.Font.set_bold

Is this a case of the underlying c code using ints and not casting back to python's bool type?

[MightyJosip]

Docs are wrong (at least when I tested those functions)

[MyreMylar]

Looked over the changes and then tried it out in pygame_gui and it all seems to work well with the PyCharm inspection.

Looks like type checkers don't care actually about passing a bool into an int - though it is slightly confusing for the auto complete hints.

I think this should be merged and we can figure out any ints that should be bools later.

[MightyJosip]

Looks like type checkers don't care actually about passing a bool into an int - though it is slightly confusing for the auto complete hints.

This is because of numeric object "hierarchy". Basically it goes like float -> int -> bool -> None. So for example type hint for float will accept float, int, bool and None, int will also accept bool and None...

[illume]

🎉 👍