In short: No.
xbmcswift is just a wrapper for the XBMC add-on api and the api doesn't provide a possibility to interact with scraper add-ons.
However, there is the "script.module.metahandler" add-on you could use (by requiring it via addon.xml) to retrieve data from thetvdb and themoviedb - but it slows down extremely your add-on.