This class can be used to store additional information in a
NeXus file e.g. pictures, movies, audio, additional text logs
Author or creator of note
Date note created/added
Mime content type of note data field e.g. image/jpeg, text/plain, text/html
Name of original file name if note was read from an external source
Title of an image or other details of the note
Binary note data - if text, line terminator is [CR][LF].