Combo Trials, Split Screen, BiOS fully animated, and more!

Quite possibly the BIGGEST non-character update in DracoFighter so far!!!

BiOS ANIMATIONS -- BiOS is now FULLY sprited, meaning you can see his edginess in all its colored glory!!

COMBO TRIALS -- go through combos for every (non-secret) character to learn and challenge yourself!

MOBILE SPLITSCREEN MODE -- a more comfortable method of playing mobile multiplayer!

OUTLINES -- bold outline shader to make characters and projectiles stand out! Shader taken from https://godotshaders.com/shader/2d-outline-stroke/, thank you to GDQuest and contributors

FRAME DATA DISPLAY -- no further research required to see your frames on block and on hit!

STAGE FIXES -- new music for Lab and adjustments made to Training Room!

UI ADJUSTMENTS -- special thanks to @Tamanegi_Kay for suggesting brighter UI elements when hovered!

BUG AND BALANCE FIXES -- a must for every update