I want gz::sim::SdfEntityCreator to support creating ECS entities from SDF projectors.

I want gz::sim::SdfEntityCreator to support creating ECS entities from SDF projectors.: a task in MiMo-V2.6-RL-harbor-code: MiMo-V2.6-RL Code (Harbor) (Harbor dataset). What the agent is asked, how it is graded, what it runs in, and its files.