Added LLObjectList::getAvatar(LLUUID) for type-safe and quicker lookup
Added F32 overload to LLSD because using F64 needlessly is silly.
(And its lack of F32 overload caused issues with LLCachedControl<F32>)
Holy hell, this was an interesting one to implement. I wish I understood it better. Unfortunately I think this marks the end of trying to re-implement the Local Inventory for Temp and Local textures. It's just not feasible now that the entire inventory system has been whipped into a code shitstorm.
Signed-off-by: Beeks <HgDelirium@gmail.com>
