Enhancement: custom class colors support

[Road-block]

Hi.
Would it be possible to support the CUSTOM_CLASS_COLORS global table.
It's an addon convention for allowing players to customize class colors without causing taint.

The addon for managing the table is dated but the core still works and the convention is in use by many popular addons *

* for example: WeakAuras, Talented, SexyMap, Postal, Decursive, WIM and many smaller ones

At the simplest adding support consists of a simple edit.
Find RAID_CLASS_COLORS replace with (CUSTOM_CLASS_COLORS or RAID_CLASS_COLORS) and AFKS will respect user defined class colors.

That will make it so we can for example have blue colored shamans in SoD/Era panel instead of paladin-pink 😄