The Staff and Users should path to another User when told to

[Erik Johnson]

The user_status message contains some information that indicates the character should walk over to another character.

I believe the "visiting" value is the name of the other character to walk to and maybe the "stay" value indicates if they should stay there or continue wandering.

[Erik Johnson]

Modify the Staff AI logic to detect when they have another user to visit. If so, navigate there. Otherwise, wander.

• Save user_status information for the Staff/Users
• Add AI State/Transitions to detect if there is a character visit command and to navigate there.
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