add figure 1 plots a,b and c
spelling correction
generalized version of Hspectra
correct units reference for spectra, add save as mat file

Consolidate color bar range definition
Find unique kh only once!

This should make the code a littel faster since it soesnt re-find stuff
initialize the N and khidx arrays

also re-enable plotting in the generalized function
generalize specvdepth to a function
initialize khidx
reorganize to make roots easier to edit
ad switch to easily disable plotting 2-d spectra for each step