202409 Recent-ish feature presentation

This is a presentation on new features over the last couple years.
Also attached are the spectra used in the presentation, or can be used to try out some of the features.

Some of the features are currently only available in the "bleeding edge" build for Windows at https://github.com/sandialabs/InterSpec/releases/tag/bleeding-edge .
A macOS build with these features will be added here in the next few days.