Super Secret Shaders

This mod adds back the super secret shaders that have existed in code untill version 1.21.1.
I made this pack simply to update my Origins datapacks that used those shaders and instead of simply embedding them in those datapacks i thought that others may also want a single resource pack to add them back.

Restored effects (load by id, e.g. minecraft:shaders/post/.json):
  antialias
  art
  bits
  blobs
  blobs2
  bumpy
  color_convolve
  deconverge
  desaturate
  flip
  fxaa
  green
  notch
  ntsc
  outline
  pencil
  phosphor
  scan_pincushion
  sobel
  wobble