Background Transitions

Changelogs (from 2.0):

3.1:

• +Added customization of amount of full cycles on one turnover;
• ∟/assets/minecraft/shaders/core/position_tex_color.fsh: (8 line) #define TIMES <value:integer>

3.0:

• +Added 1.18 snapshots panorama.
• +Tweaked shader's code so it's flexible for customizing.

2.0:

• +Added original panorama before 1.13! (Upscaled and blured version made by sameythehedgie [Link to pack])
• +Tweaked shader's code for new(old) panorama.