This is an experimental patch that adds support for comparing texture
hashes for the purpose of accurately responding to AgentTextureCached
packets. There is a change to IClientAPI to report the wearbles hashes
that come in through the SetAppearance packet. Added storage of the
texture hashes in the appearance. While these are added to the
Pack/Unpack (with support for missing values) routines (which means
Simian will store them properly), they are not currently persisted in
Robust.
Protect one more update of the baked texture hashes.
One more appearance change: drop sending the SendAppearance packet
to avatar when it becomes root. This packet shows up in the viewer
logs as an error and appears to cause problems for completing the
texture rebake process for v1 viewers in some cases.