Fix crazy camera stack issues

Turns out, it was an artifact of us suspending the simulation during links
and partly because of Cyan's late adding of the avatar controller to the
sim. Now, we add the avatar as soon as the age data is loaded. This causes
the camera stack to be populated with whatever garbage PhysX decides on,
then xJourneyClothsGen2 is free to set the real stack after we get all the
SDL from the server.

Verified to fix Teledahn oddness and not display a regression in Kemo.
Merge pull request #302 from Hoikas/camera

Fix Teledahn and Kemo Camera Issues