node-inspector: Use type=uri, show both string+file input
node-inspector: Use type=uri, show both string+file input

imgflo can both accept HTTP uris which we want to select as string,
and dataURLs which we want to have file selector for.
In future we might want to have URL pickers for images from say
Flicker/webcam etc as well

oportocala/noflo-ui,noflo/noflo-ui,noflo/noflo-ui,rdf-pipeline/noflo-server,taylorzane/noflo-ui,lxfschr/noflo-ui,rasata/noflo-ui,flyboarder/noflo-ui,rasata/noflo-ui,oportocala/noflo-ui,lxfschr/noflo-ui,taylorzane/noflo-ui,rdf-pipeline/noflo-server