Allow to sort thumbnails by AcquisitionDateTime or any other stack property (sorted by InstanceNumber ascending by default)

- Retrieve AcquisitionDateTime via DICOMWeb (WIP for DIMSE)
- Add a global template helper to sort arrays by an array element property or deep array element propery, and sort type

Packages/worklist/server/services/dimse/retrieveMetadata.js

@@ -100,6 +100,7 @@ function resultDataToStudyMetadata(studyInstanceUid, resultData) {
             sourceImageInstanceUid: getSourceImageInstanceUid(instance),
             laterality: instance[0x00200062],
             viewPosition: instance[0x00185101],
+            acquisitionDatetime: instance[0x0008002A],
             numFrames: parseFloat(instance[0x00280008]),
             frameTime: parseFloat(instance[0x00181063]),
             lossyImageCompression: instance[0x00282110],