ENYO-2064: Added hermes operation to export a folder as a FormData with base64 data

Enyo-DCO-1.1-Signed-off-by: Yves Del Medico <yves.del-medico@hp.com>
Merge branch 'master' of github.com:enyojs/ares-project into ENYO-2055
Merge pull request #236 from enyojs/ENYO-2055

ENYO-2055: Added hermes operation to export a folder as a FormData with base64 data