[CS] Niko Oneshot V1.0

Adds Niko from Oneshot into the game as a skin for Mario.
Includes a custom Icon and custom sounds, as well as being colorable.
(Do note, metal textures are bugged. other than that, it works perfectly.)

Model by boomerdacat.

Credits:
TheShibeRealm - Importing
yellow_phosphor - Help with importing
BoomerDaCat - Model. Used in her romhack, found here: Oneshot
Thank you for giving permission to do this!
Character Select Template by Squishy, Melzinoff, and Garrulous64 used.
Icon and sounds from Oneshot by Future Cat.