Solid angle typo

[pmk-LANL]

Remove the per steradian units when plotting/saving spectrum, when the solid angle of the detector is already accounted for. By default fiducia.loader.loadResponses accounts for the solid angle, so that the responseFrame is in units of V/GW instead of V/GW/sr. This then means that the spectrum is in units of GW/eV instead of GW/eV/sr.

Units need to be fixed for:

• fiducia.visualization.plotResponse
• fiducia.visualization.plotStreak
• fiducia.cspline.reconstructSpectrum
• fiducia.main.analyzeSpectrum
• fiducia.main.feelingLucky

[pmk-LANL]

When plotting, explicitly state the units of the plot. i.e. (spectral radiance, spectral intensity, spectral flux) according to SI unit conventions.