[Open Assets] The Matcha Gacha V1.2

This update well, fully adds one character to the main pack and adds another.

- Kool-Aid Man added to full pack
- Nanashi Mumei (in the form of her 'puppet' style from the Hololive EN spelling bee, drawn by animator Noimible) is added, having Billy Hatcher's stats (4 Weight, 3 Speed) and being rivals with Metal Sonic, ChuChu, and Tails Doll. Ironically a Vtuber is something I wanted to do, and I also wanted to tribute Mumei as she's leaving that persona behind in a few days. So rubbed 2 and 2 together and hey.

Also a bit late happy anniversary for Ring Racers. Main page with be updated later with at least a roster update.

Something strange has occurred in the realm of the Matcha Gacha. Why yes, a brand-new event is occurring involving the citing of a suspicious character claiming of a 'life-saving divine principle', whatever that is. Get your chance to grab it now while supplies last! 909/10 players have written good experiences about this event while it was playtested, and whose to say the player is wrong in this case?

Spoiler: The Zinger

In all seriousness though, this pack adds in, yes, the Kool-Aid Man. He has 9 Weight and 2 Speed, and rivals Knuckles, Bark, and Chaos Zero. Voiceclips come from commercials of Kool-Aid as well as two from Family Guy's parody of the character. He's currently a separate file from the others as I'm currently deciding what to do with more 'jokey' additions in future updates. His 'pack' will be renamed come next update though.

This pack notably adds 3 new characters, Puggsy from the Psygnosis/Traveler's Tales game of the same name [Maria's statblock], Jashin-chan from Jashin-chan Dropkick (or Dropkick on My Devil) [Aigis' statblock], and Mira Yurizaki from Dimension W [Gutbuster's statblock].

As for updates for other characters:
- All prior characters except Witch have had their soundclip volume increased to match her and the three newbies.
- Rocko had a minor rival switch-up.

Otherwise, ye. Hope people enjoy. Main page will be updated relatively shortly to match.