[JavaScript] Mobile color picker

[MattIPv4]

The current color picker on the web control panel makes use of the HTML5 color picker input which isn't support on most mobile devices.

I would like to have a color picker implemented on the fixture control page that supports mobile.
Further, the color picker should update the fixture color as the picker is selected (before mouse/finger release, before submit etc).
Additionally, the picker should still allow users to type in their own custom hex value character by character.

Preferably, this should not use jQuery as the site currently does not use it.