Moved all source files into /src

Created dir /src, and moved the source files into it. Left package.json, README.md and settings.json out.
Modified package.json to point to the new src dir.

package.json

@@ -2,9 +2,9 @@
   "name": "wstest",
   "version": "1.0.0",
   "description": "",
-  "main": "index.js",
+  "main": "src/index.js",
   "scripts": {
-    "start": "node index.js"
+    "start": "node src/index.js"
   },
   "author": "",
   "license": "ISC",