read image metadata from MediaInfoService if available
If an instance of the MediaInfoService is present for a given image URL e.g.
The cdm service should use that instead of extracting the metadata from the image file, for which downloading of the image is required.
ref #9607 replacing class local factory methods and heplers in CdmImageInfo by service layer factory classes and metadata 'reader' class
ref #9607 moving MediaMetadataService URI transformation to DefaultMediaTransformations
ref #9607 adapting to changes in image metadata factories - CdmApplicationRemoteConfiguration
ref #9607 fixing typo in class name, legacy method for old code using MediaMetadataFileReader, preparing for more metadata readers