Sound effect replacements

[LunaMoo]

Cool stuff like always, through trying to think about games where low quality sounds were trully bothering me nothing comes to my mind. Guess after I gave up on using headphones for games I grew pretty high tolerance to 22KHz mono sound.

Looking what others would like to be using this aka something it wouldn't allow / music replacements, would probably be easier to just restore separate sound sliders, this time named correctly and maybe for every source instead of confusing "music" and "sounds" groups. I mean that's probably the only reason people even requests those sliders for ~ to disable in-game music and play their own. Sound menu is rarely ever used anyway so a bit of clutter there wouldn't hurt.