Add BingMaps sample app to support repo

Enyo-DCO-1.1-Signed-Off-By: Ben Combee (ben.combee@lge.com)
Clean up jshint issues with BingMaps, fix index.html to point to proper Enyo

Enyo-DCO-1.1-Signed-Off-By: Ben Combee (ben.combee@lge.com)