Specview export tof wavelength

[JackEAllen]

Issue

Closes #2216

Description

• Add columns to the CSV file exported by the spectrum viewer to include the unit conversions: ToF, Wavelength and Energy

• Add row below header to specify units

• Update tests to reflect changes made as part of this issue to spectrum viewer CSV export format

  Testing

• Manually tested and compared old output to new output (see screenshots)

• Checked unit tests pass

CSV output format with the following files loaded: sample, open

CSV output format with the following files loaded: sample, open, spectra log

Acceptance Criteria

• Spectrum Viewer CSV export without spectrum loaded exports in the same format as previously (no ToF, Wavelength or Energy)
• Spectrum viewer CSV export with spectrum file loaded includes ToF, Wavelength and Energy Units including recon row denoting unit of measurement
• Tests Pass

Documentation

How have you changed the documentation to reflect your changes? All changes should be noted in the appropriate file in docs/release_notes

Updated Release Notes: docs/release_notes/next/feature-2216-export_tof_wavelength_and_energy_to_csv

[coveralls]

coverage: 72.774% (+0.04%) from 72.735% when pulling fe00cd24e8563997a5f262c86bdd14e318bb6c62 on specview_export_tof_wavelength into 4d2ef3e3620992889e30eec29d520001605500aa on main.

[coveralls]

coverage: 72.761% (+0.03%) from 72.735% when pulling 1c42a4ebf7db909357626988af7e0b56383df2d2 on specview_export_tof_wavelength into 4d2ef3e3620992889e30eec29d520001605500aa on main.

[coveralls]

coverage: 72.731% (+0.02%) from 72.713% when pulling ef67ddfe552bf299d07d58456747e532c6d81cb9 on specview_export_tof_wavelength into 937bb368c7527ba8ee619d841402dcec0ba83ebe on main.

[coveralls]

coverage: 72.726% (+0.01%) from 72.713% when pulling 5bb4e6dfb522dae483dd41b6d9adb5bc1361df3e on specview_export_tof_wavelength into 937bb368c7527ba8ee619d841402dcec0ba83ebe on main.

[coveralls]

coverage: 72.771% (+0.02%) from 72.75% when pulling fa39ff4607b1011b48e8e6ff61cd9aa5e0111b55 on specview_export_tof_wavelength into f0def70b3a8c928fc9185db4ec63c6d71aa1f304 on main.