Add the replacement model config options to be parsed when generating
a namelist or yaml file if and when the step gets set up. The config
values should be in the appropriate python data type: bool, float,
int or str.
Parameters:
options (dict) – A dictionary of options and value to replace model config options
with new values
config_model (str, optional) – If config options are available for multiple models, the model that
the config options are from