renamed files:
    removed Spectrum out of file name since XrayCalibration can be done with both methods
    - at the moment only pxar supports SCurve Method
changes in files such that SCurve Method works
changed StandardConversionFactor 65 --> 50
updated checking of test software + new function, check for comments, which will be automatically be performed for every Test
exception handling
changed Standard conversionfactor 65 -->50
iupdated FluorescenceTarget options to Spectrum and SCurve
working on XrayCalibration SCurve Method
working on XrayCalibration SCurve Method
changed standard conversion factor 65 -->50