fix(core): update

ts/smartnetwork.plugins.ts

@@ -1,4 +1,13 @@
-let speedtestNet = require('speedtest-net');
-import * as smartpromise from '@pushrocks/smartpromise';
+// native scope
 
-export { speedtestNet, smartpromise };
+// @pushrocks scope
+import * as smartpromise from '@pushrocks/smartpromise';
+import * as smartstring from '@pushrocks/smartstring';
+
+export { smartpromise, smartstring };
+
+// @third party scope
+let speedtestNet = require('speedtest-net');
+import * as portscanner from 'portscanner';
+
+export { speedtestNet, portscanner };