v1.12.0

FileIO v1.12.0

Diff since v1.11.2

Closed issues:

• Too many open files (#352)
• FileIO not loading / requiring dependency AVSfldIO properly (#353)

Merged pull requests:

• add QOI.jl to read and save the qoi image format (#354) (@KristofferC)
• register ImageIO for sixel format (#355) (@johnnychen94)
• FileIO v1.12.0 (#356) (@johnnychen94)