Gdsfactory

- fix netlist export

- difftest copy run_file to ref_file if prompt = Y (before it was just deleting it)
- Component.info is just now a regular dict (no more DictConfig)
- move Component.info.{changed, full, default} to Component.settings
- Component.metadata is a DictConfig property
- serialize with numpy arrays with orjson
- add Component.metadata and Component.metadata_child
- reduce total test time from 50 to 25 seconds thanks to faster serialization

- improve gdsfactory.simulation.modes
- replace dataclass with pydantic.BaseModel
- add pickle based file cache to speed up mode calculation
- find_modes_waveguide and find_modes_coupler do not need to pass mode_solver
- add single_waveguide kwarg to find_modes_waveguide and find_modes_coupler

- pass layer_stack to read_sparameters_lumerical, so that it reads the same file as write_sparameters_lumerical

- add delete_fsp_files kwarg to write_sparameters_lumerical

- rename write_sparameters_meep_mpi_pool to write_sparameters_meep_batch
- redirect write_sparameters_meep_mpi stderr and stdout to logger
- if stderr write_sparameters_meep_mpi does not wait for the results
- add gf.simulation.modes.find_modes_coupler