Allow Hue values to cycle around beyond the [0..360] range

[andrezero]

Why

As an author I wan to express bounded or anchored series that loop around the hue wheel

Currently: clamped to [0..360]

What

Changes to hue values

• when creating values, store the value unchanged
• when returning in get() rebase to [0..360]-

Changes to bounded hue models

Direction between from and to must always work left to right

• if to is smaller than from add 360