v2.0.0 - Now with strong typing!

Added

• Introduce inheritance-based strong typing
• Add color info strings
• Add hand-picked default colors
• Add color validity check
• Add explicit ANSI grey scale map
• Add white point and working space utilities
• Add working space unit tests

Changed

• Move printColorTable to vivid::ansi namespace
• Rework everything to strong types
• Rename functions to utility

Fixed

• Fix some LAB and XYZ bugs
• Fix conversion matrix number twist

Removed

• Remove automatic color saturation in low-level conversions
• Remove additional line breaks around color table print