Add loop and fade options to pygame.mixer.channel.queue()

[AntoineMamou]

This PR is related to this issue : #3236

I added optionals argument loop and fade in chan_queue to let the user choose if he wants to play the sound in the queue with a loop or a fade effect. I also modified the callback function to play the sound with the good effect.

[damusss]

Is my GitHub tweaking, why does this PR also add angle and angle rad properties? did you mix some branches?
Anyways, I didn't look at the code in depth but I can notice the missing mixer tests and stubs. Also the comments explaining the code should be written in English, not French, so everyone can understand them.
Also Also while the docs explain the new parameters, they have not been added to the function signature a few lines above.

[AntoineMamou]

Yeah I probably mix some branch, sorry. Thanks for your comment, I'm going to change what I forgot.

[AntoineMamou]

Maybe this PR should be closed, idk