Breast lesion workflow:  added functionality and user interface to register PET-3D volumes to T1-3D volumes.

AutoBuild Test: added subtest for EPI->T1 registration in Breast lesion workflow.

AutoBuild Test:  added subtests for  DialogAutoFocus3D  and DialogAutoFocus4D.

"Layer Control Dialog> Load DICOM layer" :  fixed the defect  crash defect when "Load DICOM" button is pressed.