nUI: Config [ChatFrame] (30000.4)

Change Log:
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30000.4

* Added slash commands

/nui chatframe



30000.3

* Settings are now saved per character

* Integrated with nUI: Config



30000.2

* Added Font-size setting for CombatLog

* Added Font-size setting for HitsMode

Description:
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Adds some cosmetic changes to the chatframes.



Current features:

* Right justifies text in CombatLog

* Sets CombatLog font-size to 12

* Right justifies text in HitsMode

* Sets HitsMode font-size to 12

* Integrates with nUI: Config

* Slash commands: /nui chatframe

- /nui chatframe justifycombatlog

- /nui chatframe justifyhitsmode

- /nui chatframe fontsizecombatlog {n}

- /nui chatframe fontsizehitsmode {n}