created functionality: ExtractionService now will check if there is link in links list that contains 'manifest' keyword, if encountered, program will select links from manifest json file in prepared format (format in maximum resolution), otherwise program will take rest of the mets links.
annotation getAllLinksPreparedToMaximumResolution will map statically file name : "default.jpg", as it is default file name and extension in all Dlibra deployments.
Closes TENE-108