Updating LET systemtest. Re #6181

This follows a change to the IDF using <locations> tag.

Visually there did not appear to be any difference between the
results. Using CheckWorkspacesMatch found difference in the
machine error level which can the fact the base instrument
position precision of the detectors which are now <locations>
is different (now to 9 digits).

For difference output:

Data mismatch at cell (hist#,bin#): (0,343)
 Dataset #1 (X,Y,E) = (-2.198,2163.17,2163.24)
 Dataset #2 (X,Y,E) = (-2.198,2163.17,2163.24)
 Difference (X,Y,E) = (0,4.19163e-08,4.19182e-08)
Data mismatch at cell (hist#,bin#): (0,498)
 Dataset #1 (X,Y,E) = (-0.028,2451.35,2451.43)
 Dataset #2 (X,Y,E) = (-0.028,2451.35,2451.43)
 Difference (X,Y,E) = (0,4.20796e-08,4.20819e-08)
Data mismatch at cell (hist#,bin#): (0,502)
 Dataset #1 (X,Y,E) = (0.028,4921.16,3480.01)
 Dataset #2 (X,Y,E) = (0.028,4921.16,3480.01)
 Difference (X,Y,E) = (0,7.56281e-08,5.34801e-08)
Data mismatch at cell (hist#,bin#): (0,504)
 Dataset #1 (X,Y,E) = (0.056,2465.24,2465.31)
 Dataset #2 (X,Y,E) = (0.056,2465.24,2465.31)
 Difference (X,Y,E) = (0,4.17481e-08,4.17494e-08)
Data mismatch at cell (hist#,bin#): (0,700)
 Dataset #1 (X,Y,E) = (2.8,3132.53,3132.63)
 Dataset #2 (X,Y,E) = (2.8,3132.53,3132.63)
 Difference (X,Y,E) = (0,2.5098e-08,2.5098e-08)
Data mismatch at cell (hist#,bin#): (0,777)
 Dataset #1 (X,Y,E) = (3.878,3615.97,3616.09)
 Dataset #2 (X,Y,E) = (3.878,3615.97,3616.09)
 Difference (X,Y,E) = (0,2.05255e-08,2.05259e-08)
Data mismatch at cell (hist#,bin#): (0,804)
 Dataset #1 (X,Y,E) = (4.256,3850.19,3850.32)
 Dataset #2 (X,Y,E) = (4.256,3850.19,3850.32)
 Difference (X,Y,E) = (0,1.71481e-08,1.71476e-08)
Data mismatch at cell (hist#,bin#): (0,852)
 Dataset #1 (X,Y,E) = (4.928,4415.65,4415.8)
 Dataset #2 (X,Y,E) = (4.928,4415.65,4415.8)
 Difference (X,Y,E) = (0,1.62845e-08,1.62836e-08)
Data mismatch at cell (hist#,bin#): (0,859)
 Dataset #1 (X,Y,E) = (5.026,4521.46,4521.6)
 Dataset #2 (X,Y,E) = (5.026,4521.46,4521.6)
 Difference (X,Y,E) = (0,1.89093e-08,1.89111e-08)
Data mismatch at cell (hist#,bin#): (0,885)
 Dataset #1 (X,Y,E) = (5.39,4995.38,4995.54)
 Dataset #2 (X,Y,E) = (5.39,4995.38,4995.54)
 Difference (X,Y,E) = (0,1.36106e-08,1.36106e-08)
Data mismatch at cell (hist#,bin#): (0,896)
 Dataset #1 (X,Y,E) = (5.544,5247.25,5247.42)
 Dataset #2 (X,Y,E) = (5.544,5247.25,5247.42)
 Difference (X,Y,E) = (0,1.59671e-08,1.59689e-08)
Data mismatch at cell (hist#,bin#): (0,922)
 Dataset #1 (X,Y,E) = (5.908,6040.02,6040.21)
 Dataset #2 (X,Y,E) = (5.908,6040.02,6040.21)
 Difference (X,Y,E) = (0,1.04674e-08,1.04656e-08)
Data mismatch at cell (hist#,bin#): (0,931)
 Dataset #1 (X,Y,E) = (6.034,6412.84,6413.04)
 Dataset #2 (X,Y,E) = (6.034,6412.84,6413.04)
 Difference (X,Y,E) = (0,1.12041e-08,1.1205e-08)
Data mismatch at cell (hist#,bin#): (0,941)
 Dataset #1 (X,Y,E) = (6.174,6921.85,6922.07)
 Dataset #2 (X,Y,E) = (6.174,6921.85,6922.07)
 Difference (X,Y,E) = (0,9.91349e-09,9.90894e-09)
Data mismatch at cell (hist#,bin#): (0,945)
 Dataset #1 (X,Y,E) = (6.23,7162.67,7162.9)
 Dataset #2 (X,Y,E) = (6.23,7162.67,7162.9)
 Difference (X,Y,E) = (0,9.44146e-09,9.44146e-09)
Data mismatch at cell (hist#,bin#): (0,957)
 Dataset #1 (X,Y,E) = (6.398,8072.47,8072.73)
 Dataset #2 (X,Y,E) = (6.398,8072.47,8072.73)
 Difference (X,Y,E) = (0,8.12815e-09,8.1227e-09)
Data mismatch at cell (hist#,bin#): (0,958)
 Dataset #1 (X,Y,E) = (6.412,8165.03,8165.29)
 Dataset #2 (X,Y,E) = (6.412,8165.03,8165.29)
 Difference (X,Y,E) = (0,8.23184e-09,8.23275e-09)
Data mismatch at cell (hist#,bin#): (0,965)
 Dataset #1 (X,Y,E) = (6.51,17834.2,12611.5)
 Dataset #2 (X,Y,E) = (6.51,17834.2,12611.5)
 Difference (X,Y,E) = (0,1.49448e-08,1.05665e-08)
Data mismatch at cell (hist#,bin#): (0,966)
 Dataset #1 (X,Y,E) = (6.524,18085.1,12788.9)
 Dataset #2 (X,Y,E) = (6.524,18085.1,12788.9)
 Difference (X,Y,E) = (0,7.7016e-09,5.44424e-09)
Data mismatch at cell (hist#,bin#): (0,967)
 Dataset #1 (X,Y,E) = (6.538,9173.44,9173.74)
 Dataset #2 (X,Y,E) = (6.538,9173.44,9173.74)
 Difference (X,Y,E) = (0,7.38873e-09,7.38873e-09)
Data mismatch at cell (hist#,bin#): (0,969)
 Dataset #1 (X,Y,E) = (6.566,9453.36,9453.66)
 Dataset #2 (X,Y,E) = (6.566,9453.36,9453.66)
 Difference (X,Y,E) = (0,1.45519e-10,1.41881e-10)