Promotion/Demotion Ladder Chat Formatting

[Alkali-Metal]

So, currently, the way chat formatting is, you need to /permissify player setmain <player> <group> and with the integration of promotion/demotion ladders (#32) it should use the prefix/suffix of the highest grouping in that ladder.

example ladder:

administrator -- &a &f &f
moderator -- &a &f &f
user -- &5 &f &f
pleb -- &c &f &f

Format: GroupName -- [prefix] [suffix] [colour]
.
.
So like, let's say that a user get's defaulted to the pleb group, they would then get the chat format of [pleb] {username}: {message} (so it would auto-assign the "main" group as the pleb group) then let's say this pleb is not as plebish anymore so they get a promotion to user their chat prefix would then, automatically changing the "main" group, be changed to [user] {username}: {message} and then if the user was being plebish again and got a demotion, it would reset the chat format to [pleb] {username}: {message} and it would do that for all of the groups in the ladder system. (Although there would need to be a setmain for the ladders if there is more than one ladder (should only be required if there is more than one ladder in the database))