Somari( Sonic V 4)

This is an unofficial continuation of the work started by Jabu, in order to further improve the game and facilitate any future hacking attempts. General changes: All unused graphics and objects are removed. Animations and graphics are updated. It is created alternative patch to reduce the duration of oxygen (thanks Torridgristle) It updates the sound engine created by Ti_ (thanks Ti_) New background scroll renderer, code much more faster. (thanks Ti_) Patch is included to simplify the level sele