3+ colors/hexes in a gradient

[KingAlterIV]

Gradients right now doesn't allow 3+ colors/hexes but this feature can be pretty neat.

The small bandage for now.

<gradient:#000000:#ffffff>||||||||||||||||||||||||</gradient><gradient:#ffffff:#000000>||||||||||||||||||||||||</gradient>

<gradient:red:blue>||||||||||||||||||||||||</gradient><gradient:blue:green>||||||||||||||||||||||||</gradient><gradient:green:yellow>||||||||||||||||||||||||</gradient><gradient:yellow:red>||||||||||||||||||||||||</gradient>

[jpenilla]

If this were added it would be nice if it could have a phase similar to rainbow, ie

<gradient:red,blue,red:phase>||||||||||||||||||||||||||||||||||||</gradient>

To make animations possible like they are with the rainbow tag

[MiniDigger]

this is now implemented, syntax is
<gradient:color:color:color:...:optionalPhase>|||||||||||||||||||||</gradient>