added module for ModEM response plotting: modemPlotResponse.py

Signed-off-by: LK <LK@uni>
cleaned modemPlotResponse a bit

Signed-off-by: LK <LK@uni>
make dayfiles - memory usage optimised by replacing lists with pre allocated array

Signed-off-by: LK <LK@uni>
modemMakeData - extended period merging to evenly spaced

Signed-off-by: LK <LK@uni>
modemMakeData - extended period merging to evenly spaced

Signed-off-by: LK <LK@uni>
shifted input parameters for modemMakeData to the file s top

Signed-off-by: LK <LK@uni>
modemMakeData: avoiding double entries from merging Periods in potentially too wide bins - only best period is taken now

Signed-off-by: LK <LK@uni>
modemMakeData ... now for real: no double entries for same periods

Signed-off-by: LK <LK@uni>
modemMakeModel - allows 1D starting model

Signed-off-by: LK <LK@uni>
BIRRP output conversion: extracted interpolation of LEMI responses from general BIRRP processing and put it into "utils/interpolation" -- allows incorporation of other instrument types later
lk.modem: updated LK working version and solved merge conflicts