[driver/digitalLight] change name (from BH1750FVI to BH1750)
[driver/digitalLight] jshint happy
[lib/sensor] addSensorPackage to support 3rd party sensor package (networks, drivers)
[example] add futuretek example to utilize sensorApp methods and change to load futuretek sensor package from node modules
[example] 1. add example sensor, 2. change sensorDriver to sensorApp
[driver/network] remove futuretek network and drivers
change package.json  - use sensorjs-futuretek module, remove net-snmp