add contributors list to package.json
add contributors list to package.json

fabric8-ui/fabric8-ui,pmuir/fabric8-ui,pmuir/fabric8-ui,pmuir/fabric8-ui,fabric8io/fabric8-ui,fabric8io/fabric8-ui,fabric8-ui/fabric8-ui,fabric8io/fabric8-ui,pmuir/fabric8-ui,fabric8-ui/fabric8-ui,fabric8-ui/fabric8-ui,fabric8io/fabric8-ui,fabric8-ui/fabric8-ui,fabric8io/fabric8-ui,pmuir/fabric8-ui