List plugins

{"stackTrail":"paths:/plugins:get:responses:200:content:application/json:schema","oasType":"schema","type":"unknown","description":"JSON array containing the identifiers of the installed plugins","example":["explorer.js","authorization","connectivity-checks","dicom-web","gdcm","indexer","mysql-index","mysql-storage","neuro","odbc-index","odbc-storage","postgresql-index","postgresql-storage","serve-folders","stone-rtviewer","stone-webviewer","tcia","transfers","web-viewer","worklists","wsi"]}