BBS mod

Huge update! The main highlight of this update is animation states mechanism (which is an improved version of sequencer morphs from Blockbuster mod). Every form can be animated outside of film editor, and specific animation states can be triggered either by marking them as a Main animation state (will play by default), by pressing a key, or with a command (only for model blocks).

Animation states mechanism is possible thanks to generous sponsors of this update: Clouser, Nioum, Ferited, Rüyaperest, AnTaluS, SergiDPlay, LOLOG, Alek, and FinalBlock Studios! 💖

Full change log: https://github.com/mchorse/bbs-mod-wiki/wiki/Change-log#16