Iris Calliope

ES: added EEG check functions for gratings and for spectrum plus necessary helper functions to core code

shift_data can now switch between padarray (toolbox required) vs repmat (slower, core matlab code) - HL

template for WF stim where the last N ROIs are stimulation points

ES: added notch filter (assumes 1000kHz, notches 50+-2) to EEG processing part of generate_proj_meta

ES: added fft based, non shifting bandpass and notch filters

changed to downsample EEG data above 2khz to 1khz

get_eeg_times: fixed a typo and an error handling issue

updated plotting for legibility - dethdomi