Remove parameters from timeseries by default.

[robfalck]

Proposed feature.

Parameters have been included in the timeseries outputs by default for some time. This was done to maintain consistency with older versions of Dymos. However, this adds a lot of data without much benefit (seeing values of the parameters across all nodes in a phase isn't necessary, since parameters are static.

Parameter values have been available as outputs from dymos phases for several releases now as f'{phase_path}.parameter_vals:{param_name}'.

This change is backwards incompatible if users were relying on getting parameter values from the timeseries!

Once this change takes place, parameters will ONLY be available as f'{phase_path}.parameter_vals:{param_name}', not f{phase_path}.timeseries.parameters:{param_name}.

Previous behavior can be recovered by setting the include_timeseries option on the parameter to True.

Example

No response

[robfalck]

Closed by #918