* Move SetUseForwardPassIblSpecular to happen when acquiring a mesh, instead of immediately after so that we don't build the drawpacket twice for every mesh
* Update the MeshFeatureProcessor to use the booleans from the descriptor directly instead of having loose booleans in the MeshDataInstance
* m_excludeFromReflectionCubeMaps is not (and does not need to be) part of the descriptor, since setting is cheap and doesn't duplicate work that is done when acquiring the mesh