add Cam-to-palette demo
add Cam-to-palette demo

Screenshot: https://twitter.com/forresto/status/560366778266574848
Live: https://app.flowhub.io/#example/3c0ffdf17195649a2d57
taylorzane/noflo-ui,rasata/noflo-ui,noflo/noflo-ui,oportocala/noflo-ui,lxfschr/noflo-ui,noflo/noflo-ui,rasata/noflo-ui,rdf-pipeline/noflo-server,lxfschr/noflo-ui,oportocala/noflo-ui,taylorzane/noflo-ui,rdf-pipeline/noflo-server