This fixes the problem for all architectures (hg as well as local and grid) and means we don't have to dupe code between connectors.
Not ideal in that it becomes non-modular, but methods in Scene.Inventory.cs should eventually be modularized anyway.
This resolves the problem where eyes and hair would turn white on standalone configurations
When a client receives body part information, for some insane reason or other it always ends up uploading this back to the server and then immediately re-requesting it.
This should have been okay since we stored that asset in cache. However, the standalone asset service connector was not checking this cache properly, so every time the client made the request for the asset it has just loaded it would get a big fat null back in the face, causing it to make clothes and hair white.
This bug did not affect grids since they use a different service connector.
This may break a lot of things, but it needs to go in. It was tested in standalone and the UCI grid, but it needs a lot more testing.
Known problems:
* HG asset transfers are borked for now
* missing texture is missing
* 3 unit tests commented out for now
This functionality will be upstreamed later.
** Fixed call of new AvatarAppearance without arguments, which caused bots look like clouds of gas
** Added a SendAvatarData in ScenePresence.SetAppearance, which is expected after SetAppearance is run
** Fixed AssetXferUploader: CallbackID wasn't being passed on on multiple packets asset uploads
** Set VisualParams in AvatarAppearance to stop the alien looking bot from spawning and now looks a little better.
*** TODO: Set better VisualParams value then 150 to everything
