save / load

[dvezinet]

Main changes:

• coll.save() operational
• coll = sp.load() operational
• plot_spectral_fit_input_validity() better:
  - better handling of keyY
  - plot_text=bool implemented (but slow for some reason)

Issues:

Fixes, in devel, issue #64

Example:

import spectrally as sp

coll, dax, dout = sp.tutorials.main(data='ebit', chain=False, binning=False)

coll.save()
Saved in:
	C:\Users\dvezinet\Documents\Projects\spectrally\SpectralFit_name_dvezinet_20240905-170906.npz

coll2 = sp.load('C:/Users/dvezinet/Documents/Projects/spectrally/SpectralFit_name_dvezinet_20240905-170906.npz')
Loaded from
	C:/Users/dvezinet/Documents/Projects/spectrally/SpectralFit_name_dvezinet_20240905-170906.npz

coll == coll2
True

coll is coll2
False