[WIP+RELEASE] BootAnim9 - Custom boot animations!

Basically, it's an ARM9 payload for Arm9Loaderhax which loads a random animation from your SD card, plays it back and then loads ('chainloads') another payload. What does this other payload have to be? Whatever you want it to be, ReiNAND, AuReiNAND, CakesFW, Decrpyt9, GodMode9, etc.

It's...