Enhancement: Implement pitch and speed variables for FlxSound

[CyndaquilDAC]

I really don't know how difficult this would be to add, but it would be useful for saving storage space and just generally a helpful tool for game development.

[Cheemsandfriends]

I think that what really depends it is on lime to add a solid Pitch changing thing.
ninjamuffin made a PR about setting the pitch in html5 and Desktop, And I made a PR today about some rough code with changing the timer when the pitch is changed.

it could be possible, of course! but it would require some tweaking and stuff

[EliteMasterEric]

The requisite commit (openfl/lime@e6674ba) has been merged, so this feature is feasible to implement into Flixel 5.0.

[Geokureli]

#2564
it's expected for 5.0.0, but it's not a breaking change so it can happen any time. not sure when lime will release the change

[ninjamuffin99]

I believe this issue should be closed since #2564 was merged

[EliteMasterEric]

I don't see any option for playback speed unless I am missing something

[ninjamuffin99]

I don't see any option for playback speed unless I am missing something

i believe that changing the pitch changes the playback speed.
funnySound.pitch = 2; Would double the pitch, so the sound will place twice as fast, since really changing the pitch sorta just "squishes" the sound wave. At least I believe that's how sound works hehehe (peep dis one: https://youtu.be/i09V6SkVkz8)