GDA-5454 - Updated test exclude list to reflect class name change

AreaDetectorIOCIntegrationTest --> NXDetectorAreaDetectorIntegrationTest
Merge branch 'master' of ssh://dascgitolite@dasc-git.diamond.ac.uk/gda/gda-epics.git
Revert "GDA-5454 - Updated test exclude list to reflect class name change"

This reverts commit f7e2a3ee4f4f0e17215ef134a42db9e884992007.
GDA-5454 - Properly exclude AreaDetectorIOCIntegrationTest by including
.java at end
Updated SingleImagePerFileWriterTest to reflect corrections to logic.