Losslessly optimise file size of mod assets#1140

Draft

NeRdTheNed wants to merge 5 commits intoAngry-Pixel:1.12-runesfrom NeRdTheNed:1.12-dev

Commits on Dec 14, 2020

Losslessly reduce file size of .png files
NeRdTheNed
committed

Commits on Jan 12, 2021

Commits on Jan 14, 2021

Optimise changed and newly added .png files
NeRdTheNed
committed

Commits on Feb 4, 2021

Run FileOptimizer on all files
NeRdTheNed
committed