Forgot extra noble require

Author: Stephen Schiffli

lib/metawear.js

@@ -5,6 +5,7 @@ var debug = require('debug')('metawear');
 var debugRaw = require('debug')('metaboot');
 
 var NobleDevice = require('noble-device');
+var noble = require('noble');
 var ref = require('ref');
 var events = require('events');
 var util = require('util');