spec: bugfixes/cleanup of frequency sweeps - ensure that all freq sweeps are in same dim - indicate that no individual sweep function is needed when grouping sweeps - introduced get_lo_swf in base class (and renamed it in child classes)
spec: bugfixes/cleanup of frequency sweeps
- ensure that all freq sweeps are in same dim
- indicate that no individual sweep function is needed when grouping sweeps
- introduced get_lo_swf in base class (and renamed it in child classes)

QudevETH/PycQED_py3