Add the characteristic curve of the lightsource to my preprocessing

[16djm10]

[x] Divide my spectra by the characterisitic curve of the light source
[x] Alter my useable wavelength to where the signal to noise ratio is acceptable. The signal explodes for areas where low light is coming from the source
[ ] Add the functionality to the process library
[ ] Apply this to the visualized spectra in 3D slicer