writer: remove redundant ColorModel field
writer: make metadata private
wip: remove scifioconfig from saveplane
wip: restructure writer initialization
wip: writer make compression protected
fix: refactoring init structure
wip: writer make compressionTypes private
wip: writer make out private
wip: writer make fps private
wip: writer make options private
wip: writer make writeSequential private
wip: writer make valid bits private
wip: refactor suffix array creation, remove protected
wip: icsformat remove protected fields
wip: apngformat refactor protected chunk signature
wip: imageioformat remove protected field
tiff format: remove protected fields
minimaltiffformat: remove protected fields
legacyqtformat: remove protected fields
nativeqtformat: remove protected fields