Support equivalent series resistance/inductance in components
Passive components should probably all just inherit from some component that has a complex impedance.
Resistors would therefore just be a convenient way to represent such a component with a real impedance. It should be straightforward to calculate a complex impedance given a real resistance and equivalent series or parallel inductance or capacitance. The same is true for inductors and capacitors.
Related: investigate the
c0805 component in LISO.