Merge branch 'release/0.1'
Merge branch 'release/0.2'
Merge branch 'develop'
Merge branch 'release/0.21'
Merge branch 'develop'
Merge branch 'release/0.3'
Merge branch 'release/0.4'
Merge branch 'release/0.5'
Merge branch 'release/0.6'
Merge branch 'develop'
Add private colorspaces feature
Reformat matrices display
Add simple gamma function
Add WideGamut colorspace
Refactor Rec709 Colorspace

To prepare Rec2020 addition
Add Rec2020 Colorspace
Sort colorspace list
Add ACES Colorspace
Add sRGB colorspace

Now Rec709 is a child of sRGB.
Inverted matrices (XYZ to RGB)