Issue #2962525 by samuel.mortenson, jrockowitz, seanB, drpal, chr.fritsch,...

Issue #2962525 by samuel.mortenson, jrockowitz, seanB, drpal, chr.fritsch, ckrina, phenaproxima, webchick, lauriii, beautifulmind, andrewmacpherson, xjm, Gábor Hojtsy: Create a field widget for the Media library module

(cherry picked from commit de52834d)