Replace strange U64 to F64 cast with static_cast...it generates more efficient code and the result is the same.

MAINT-8239 - problems with some instances failing to load some joint positions. Added DumpXML and Reset Skeleton support for animated objects when debugging.

SL-691,SL-694 - viewer can animate objects based on server messaging. First end-to-end demo for animated objects.

- Fix member init order
- Use override specifier everywhere
- Add required typename and template keywords
- Replace smart pointer ctors with make functions where available
- Replace 0 and NULL in pointer context with nullptr

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branch : RLVa