SP-235 BIS-19: Processing plugin to generate and register overview images

...emsx/cisd/openbis/dss/etl/AbstractImageFileExtractor.java

...systemsx/cisd/openbis/dss/etl/Hdf5ThumbnailGenerator.java

.../systemsx/cisd/openbis/dss/etl/dto/RelativeImageFile.java

...openbis/dss/etl/dto/api/impl/ImageDataSetInformation.java

...stemsx/cisd/openbis/dss/etl/dto/api/v1/ImageFileInfo.java

...bis/dss/etl/dto/api/v1/SimpleOverviewImageDataConfig.java

...dss/etl/jython/ImagingDataSetRegistrationTransaction.java

...isd/openbis/dss/etl/jython/JythonPlateDataSetHandler.java

...openbis/dss/etl/jython/SimpleImageDataSetRegistrator.java

...ng/server/plugins/MarkerFileCreatingProcessingPlugin.java

...g/shared/imaging/dataaccess/IImagingReadonlyQueryDAO.java

...hared/imaging/dataaccess/ImgAcquiredImageEnrichedDTO.java