GDA-5646

add local_name as <scannablename>.<inputorextraname> to scannable datasets

protect better against NPE with prerequistiteScannable in NDWMT
GDA-5646

add local_name to all detectors that do not provide their own tree
GDA-5646

add local_name to all detectors using NXDetectorDataDoubleAppender
Merge branch 'nexuswriter'