rlmesh_env_factory_close
Stamps tags, branch parameters and reset-option keys on the made env. On RLMESH_OK exactly one of *out_env / *out_vector_env is non-NULL (the caller's) and the other is set to NULL; on any other status neither is written.
RLMeshStatus rlmesh_env_factory_close(RLMeshEnvFactory* factory)