EPICS ADViewer - Add getDataType_RBV2() to return val as Java enum
EPICS - ADViewer use DataType enum val to evaluate image max
EPICS - ADViewer rename suffices to suffixes
Merge branch 'gda-8.40' of ssh://dascgitolite@dasc-git.diamond.ac.uk/gda/gda-epics.git into gda-8.40