Updated GS1DigitalLinkToolkit.js to include exports method so it can …

…be called as an external Node library (src folder)

Added decodeDigitalLinkURL.js script as an example script to call GS1DigitalLinkToolkit using node.

src/decodeDigitalLinkURL.js

@@ -0,0 +1,27 @@
+/*
+Example JavaScript called from the command-line or within a Node.JS application.
+Node.JS v11 command line example (Ubuntu / Debian Linux) where this file and Gs1DigitalLinkToolkit.js are in the same folder:
+
+/usr/local/lib/nodejs/bin/node decodeDigitalLinkURL.js "https://id.gs1.org/gtin/05011157888163"
+
+*/
+const GS1DigitalLinkToolkit = require("./GS1DigitalLinkToolkit");
+let gs1dlt = new GS1DigitalLinkToolkit();
+let structuredObject = {};
+
+try
+{
+    structuredObject = gs1dlt.analyseURI(process.argv[2],true).structuredOutput;
+    structuredObject.error = "OK";
+}
+catch (err)
+{
+    structuredObject = {
+        identifiers: [],
+        qualifiers: [],
+        dataAttributes: [],
+        other: [],
+        error: err.toString()
+    }
+}
+console.log(JSON.stringify(structuredObject));