Alacrity

1.21 update with most of new stuff New main menu panorama New main menu title Spider & Cave spider texture update Spider & Cave spider CEM Acacia leaves optimization Oak leaves rework & optimization Dark oak leaves rework & optimization Spruce leaves rework & optimization Stone bricks wall rework Fixed z-fighting at x-crossed walls A lot of fixes for all walls Ladder fix Bricks texture update Blackstone texture rework Tuff texture rework Raw copper block rework Fixed textures with incorrect resolution causing mipmap error