v1.0.1

This version is a complete rewrite of the library, dropping GraphicsMagick for native Rust-based color extraction algorithm, bringing visually improved results and significantly faster processing.

Breaking changes

• NPM package is now published as @colour-extractor/colour-extractor, instead of colour-extractor previously.
• topColours (and topColors) take only one argument, path to the image.
• topColours now returns a Promise, instead of taking a callback function.
• Resolved promise no longer contains frequency at which each detected colour appears.
• Added topColoursHex which returns colors as CSS hex code, compared to an RGB triplet returned by topColours.
• rgb2hex and hex2rgb utility functions have been removed.