rotrBLOCKS 1.21

Add:

• CTM/Glass
• shulker
• shulker_black
• shulker_blue
• shulker_brown
• shulker_cyan
• shulker_gray
• shulker_green
• shulker_light_blue
• shulker_light_gray
• shulker_lime
• shulker_magenta
• shulker_orange
• shulker_pink
• shulker_purple
• shulker_red
• shulker_white
• shulker_yellow
• /entity/banner_base
• /entity/banner/border
• /entity/banner/bricks
• /entity/banner/circle
• /entity/banner/creeper
• /entity/banner/cross
• /entity/banner/curly_border
• /entity/banner/diagonal_left
• /entity/banner/diagonal_right
• /entity/banner/diagonal_up_left
• /entity/banner/diagonal_up_right
• /entity/banner/flower
• /entity/banner/globe
• /entity/banner/gradient
• /entity/banner/gradient_up
• /entity/banner/half_horizontal
• /entity/banner/half_horizontal_bottom
• /entity/banner/half_vertical
• /entity/banner/half_vertical_right
• /entity/banner/mojang
• /entity/banner/piglin
• /entity/banner/rhombus
• /entity/banner/square_bottom_left
• /entity/banner/square_bottom_right
• /entity/banner/square_top_left
• /entity/banner/square_top_right
• /entity/banner/straight_cross
• /entity/banner/stripe_bottom
• /entity/banner/stripe_center
• /entity/banner/stripe_downleft
• /entity/banner/stripe_downright
• /entity/banner/stripe_left
• /entity/banner/stripe_middle
• /entity/banner/stripe_right
• /entity/banner/stripe_top
• /entity/banner/triangle_bottom
• /entity/banner/triangle_top
• /entity/banner/triangles_bottom
• /entity/banner/triangles_top
• /entity/banner/base