Deprecate IntegratePeakTimeSlices

[KyleQianliMa]

Description of work

Deprecate the IntegreatePeakTimeSlices function.
story 7438

Summary of work

Further detail of work

To test:

Load a SCD data set from systemtests Data and find the peaks

TOPAZ_3132_event.nxs is located in mantid/Testing/Data/SystemTest

LoadEventNexus(Filename=r'TOPAZ_3132_event.nxs',OutputWorkspace='TOPAZ_3132_nxs')
ConvertToDiffractionMDWorkspace(InputWorkspace='TOPAZ_3132_nxs',OutputWorkspace='TOPAZ_3132_md',LorentzCorrection='1')
FindPeaksMD(InputWorkspace='TOPAZ_3132_md',PeakDistanceThreshold='0.15',MaxPeaks='100',OutputWorkspace='peaks')
FindUBUsingFFT(PeaksWorkspace='peaks',MinD='2',MaxD='16')
IndexPeaks(PeaksWorkspace='peaks')
peak0,int,sig = IntegratePeakTimeSlices(InputWorkspace='TOPAZ_3132_nxs', Peaks='peaks', Intensity=4580.8587719746683, SigmaIntensity=190.21154129339735)
print("Intensity and SigmaIntensity of peak 0  = {} {}".format(int, sig))

This code should produce a message that indicate IntegreatePeakTimeSlices has been deprecated.

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