Reset automatic assignment

[lpatiny]

Before making an automatic assignment we should keep the original ranges / zones somewhere and be able to reapply them:

In the header of the automatic assignment panel we could add this icon for the reset:

[hamed-musallam]

@lpatiny

I think we need to keep a copy of the spectra (ranges/zones/info) in the global state before we apply the auto assignments, What do you think?

[lpatiny]

I don't think it should be in the global state but should only be in the local state of the automatic assignment panel.