refs #7310. SliceViewer now uses PeaksInRegion.

Additional work required to PeakTransform, PeakBoundingBox and PeakTransform to get this to work.
refs #7310. Fix test.
refs #7310. Fix warnings. Fix test on windows.
refs #7310. Fix bug and add additional tests.

Tests added which will fail in the PeakTransform names get out of sync with the options on the PeaksInRegion algorithm.
Merge remote branch 'origin/feature/7310_use_peaksinregion'