Passing in ensemble to parameter config

[oyvindeide]

This is more of a question than an issue: I dont think we should pass in a complex object like an ensemble` to the parameter configs, espesially as we are not passing it in to the alternate function here (read_from_runpath), which returns a Dataset.

https://github.com/equinor/ert/blob/dada63a435d34824cf53afd559e0788b663e9629/src/ert/config/parameter_config.py#L58C10-L58C10

For me it would be natual to be able to do:

ds = parameter_config.read_from_runpath(Path("my_file_here"), 0)
parameter_config.write_to_runpath(Path("my_file_here"), 0, ds)

without having to go through an EnsembleAccessor

[dafeda]

I agree with this.