Implemented PImMS parser
Implemented PImMS parser

Reads in a test PImMS file without any issues. Time-of-flight can be 
displayed for each pixel, and the image for a given time-of-flight range 
displayed. Further testing required to confirm there are no hidden 
issues.

AlanRace/SpectralAnalysis,AlanRace/SpectralAnalysis,AlanRace/SpectralAnalysis