Delete unneeded cctest script files
Update cctest.c to receive vs_undersampled_flag as return from regSimVsInitGain()
Update libreg regSimVsInitGain() to calculate step response time
Major update to cctest reg.h and change default meas delays
Delete unneeded cctest scripts
Major update to cctest scripts
Update cctest reg scripts to rename TRACK_DELAY_REGPERS to TRACK_DELAY_PERIODS
Update cctest/inc/pars/meas.h to add extrapolate flags and FIR filters instead of IIR
Update cctest/inc/pars/reg.h to rename TRACK_DELAY_REGPERS to TRACK_DELAY_PERIODS and remove EXTRAPOLATE_MEAS
Update libreg rst.c/h to remove track_delay handling and decimate_flag and replace pure_delay with pure_delay_periods
Replace regSimNoise() by regSimNoiseAndTone() to add tone generation support