Get form elements using client script (#1648)

* Create getFormElements.js

This code helps in retrieving all the form fields by getting all the elements on the form

* Create README.MD

Readme file describing the functionality of the script

Author: koratalas

Client-Side Components/Client Scripts/Get Form Elements/README.MD

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+This script is a Client Script (onLoad) for ServiceNow which retrieves all field names present on the current form and displays them in an alert message.
+
+Example: Hi Sai, please find the elements of the form short_description, description, number, etc.

Client-Side Components/Client Scripts/Get Form Elements/getFormElements.js

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+function onLoad() {
+    //Type appropriate comment here, and begin script below
+    var arr = [];
+    for (var i = 0; i < g_form.elements.length; i++) {
+        arr.push(g_form.elements[i].fieldName);
+    }
+    alert("Hi Sai, please find the form elements: " + arr.join(","));
+}