cubicweb-wireit #2411238 Make FileField work [validation pending]

First specifications are :

  • make file selection directly upload the content and create a File instance
  • substitute the file input by a link to the resulting File instance and an eid in the resulting Wiring json definition
prioritynormal
typeenhancement
done in0.2.0
load3.000
load left0.000
closed by#842a1b49dff3 implement automatic upload of file fields (closes #2411238)