Receive Avatar Appearance Data

appearance (Notifications)
Type	Corrade progressive notification
Notification	`appearance`
Data	`type`, `firstname`, `lastname`, `version`, `COF`, `region`, `hover`
Structure	AvatarAppearanceEventArgs
Description	Avatar appearance data.
Commands	None.
Last Changes	C10 - added.

Data	Description
`type`	The type of the notification.
`firstname`	The first name of the agent.
`lastname`	The last name of the agent.
`version`	The internal appearance version.
`region`	The region the appearance data was received on.
`hover`	The avatar hover offset.