add specrta commands from oc683
add ensure/remove Skyllinstad... to exsiting functiuons
plot surface waves in ObsSurfEps
add common font, zissou color pallete
add waitbar and smoothed spectra to Hspectra
remove extraneous tabs
Move spectra related files into subfolder
add indentation
move bestf into spectra
remoe extraneous subfunction, add help text
make a more general harmonic filter

include a special case that preserves previous behaviour and function
name
sample filters for the first four orders
Fix some descriptor text