Port skeletal animation to renderer V2

[x] Refactor #jointproto
- We are providing a single matrix palette to the whole renderFrame(). We need to design an API to provide per Object animation.
[x] Do bone deduplication (#deduplicate_bones)
[x] Allow vertex attribute interleaving (e.g. for vertex bone data), see Loader.cpp::makeVertexStream()
- [x] First clean up makeVertexStream (remove last param) by implemeting a special "split views" function
- [x] Add more helpers, to add interleaved stuff to a vertex stream?
[x] See #RV2 animation todos
[x] Restore the correct effect file for donut, loaded in Entities.cpp::createPlayerModel()
[x] Move makeVertexStream in a top level header of V2
[x] Use renderer::Instance mPose in the GraphicState, instead of having dedicated members. (#RV2 pose)
[x] Change component::VisualModel from Node to Object (#RV2 API)

ShredEagle / snacman