Display acquisition date/time to viewport title bar if any image without series date/time in the DICOM headers

Some users identify chronological order of viewports using date time displayed on series title bar.

But any image without series date/time (0008,0021)/(0008,0031) in the DICOM headers will display an "Unknown" instead date/time.

This is a design of UV viewer. (It is mentioned in ALM Allegro-15903/P-8519.)

Almost such images have acquisition date/time (0008,0022)/(0008,0032).

Therefore, the design should be changed as below.

Any image with series date/time (0008,0021)/(0008,0031) in the DICOM headers, the value is displayed on series title bar.

Else if any image with (0008,0022)/(0008,0032), the value is displayed on series title bar.

Else ”Unknown” is displayed on series title bar.