v0.7.0

Added

• Color::from_oklcha()
• Support parsing oklab() and oklch() color format.
• Color::{from,to}_{laba,lcha}()

Changed

• f64 -> f32
• Return type for Color::to_{hsva,hsla,hwba,lab,lch,oklaba,linear_rgba}() changed from tuple to array.
• Deprecate Color::{from,to}_{lab,lch}(), use Color::{from,to}_{laba,lcha}() instead.
• NAMED_COLORS is now public