slapos_jio: Include support for editable on parameter form gadget

   Render a "read only" version of the parameter form, similar to the other gadgets.

   There are 2 ocasions that it is required:

      - On Software Instance/Slave Instance view for parameter_xml
      - On Whenever display the connection parameters.
4 jobs for edge in 0 seconds (queued for 1 second)
Status Job ID Name Coverage
  External
failed SlapOS-Master.UnitTest-Rafael

03:29:19

failed SlapOS-Master.UnitTest-Rafael.Edge

01:09:00

failed SlapOS-Master.UnitTest-Rafael.Edge

00:29:39

failed SlapOS-Master.UnitTest-Rafael.Edge

03:21:15