CutMD reprojection

[Owen Arnold]

Remaining use-case to implement for CutMD

reproject MDEvents only.

md_4d = Load(Filename='TestSQW_LET.nxs',  LoaderName='LoadMD', LoaderVersion=1)
p = Projection([1,1,0], [-1,1,0], [0,0,1])
md_2d = CutMD(InputWorkspace='hkl', P1Bin='-0.1,0.01,0.7', P2Bin='-0.7,0.01,0.5', P3Bin='-1,1',  P4Bin='0.1,0.2',Projection=p.createWorkspace('proj'), NoPix=False)

# Should be able to re-cut
p1 = Projection([1,-1,0], [1,1,0], [0,0,1]) # Different projection. Projection is not compounded. Projection is completely re-applied on the original 'file data'. 
md_1d = CutMD(InputWorkspace=md_2d, Projection=p1.createWorkspace('proj1'), [-0.01, 0.01], [-0.01,0.01], [-0.1, 10, 0.1], [0.1,0.2]) # With the reprojection-we force users to provide non-empty PnBin parameters for ALL dimensions

[Stuart Campbell]

This ticket has been transferred to github issue ​12465