Auto detect fieldsIndex based on input color format

[olemarius]

In Chrome component, the fieldsIndex is set to 0 (hex) by default, so when the initial value is not hex it'll still show hex input in the colorpicker.

I'd like to request the following feature:
:formats="['hex','rgb','hsl']" lists which format should be available
:format="rgba" will set fieldIndex to the desired color format
:detectFormat="true" will auto detect format. If value is empty, fall back on :format
forceFormat="true"will take the input format and convert to :format

This feature gives better control of the input/output