LIMS-1515: Add energy value to data collections

[ndg63276]

JIRA ticket: LIMS-1515

Summary:

Currently only wavelength is displayed in Synchweb for most data collection types, we should show energy in eV as well.

Changes:

• Define the eV/A conversion factor (value from https://en.wikipedia.org/wiki/Electronvolt#Wavelength)
• Add return values to the _data_collections function for the energy in eV, and also the wavelength in A for MCA spectra and peak (wpk) and inflection (win) wavelengths for edge scans
• Add labels to a few more columns, these are redundant as the union will use the labels from the first select statement, but help to identify where values are coming from
• Return energies to 0 decimal places and wavelengths to 4 decimal places, except for edge scan results which have 1 and 5 respectively (these are results so more precision is needed)
• Display these values, taking conversion factor out of the JS
• Make the edge scan filename a double width column, so that E(peak) is displayed next to the peak f''/f' results, and the same for E(inflection). Cut all f''/f' values to 2 decimal places.

To test:

• View a standard data collection (eg /dc/visit/cm37235-4/id/15542386), check the wavelength and energy are displayed as Wavelength: 0.9537Å (13,000eV)
• View a grid scan (eg /dc/visit/cm37235-4/id/15542377), check the wavelength and energy are displayed as Wavelength: 0.9537Å (13,000eV)
• View an MCA spectrum (eg /dc/visit/cm37235-4/ty/mca/id/15813), check the energy is displayed as Energy: 18,000eV (0.6888Å)
• View an edge scan (eg /dc/visit/cm37235-4/ty/edge/id/61197), check:
  • energies have 1 decimal place, wavelengths have 5 decimal places
  • f''/f' values have 2 decimal places, and e- as units
  • peak f''/f' is displayed next to peak energy, inflection f''/f' is displayed next to inflection energy, ie