Use different information messages that has been introduced as part of Zurich release (#1963)

* Zurich - Updated info messages

Display different information messages that is released as part of Zurich release.

* ReadMe file

Description about use case

Author: Vishnu-rvk

Client-Side Components/Client Scripts/Zurich - Upgraded info messages/README.md

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+**This feature will be used in the instance of Zurich++ release**
+
+Demonstrate different messages that has been introduced as part of Zurich release.
+
+Use Case: Display different information messages based on priority of the incident that will be showed on load and state is not Closed, Resolved or Cancelled.

Client-Side Components/Client Scripts/Zurich - Upgraded info messages/infoMessages.js

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+function onLoad() {
+    var state = g_form.getValue('state'); //Get value of 'state' field
+
+    if (state != '6' && state != '7' && state != '8') {
+        var priority = g_form.getValue('priority'); // Get value of 'priority' field
+        switch (priority) {
+            case '1':
+                g_form.addErrorMessage('Critical Incident'); 
+                break; 
+            case '2':
+                g_form.addHighMessage('High Priority Incident'); // addHighMessage() method will display message in orange color
+                break;
+            case '3':
+                g_form.addModerateMessage('Medium Priority Incident'); // addModerateMessage() method will display message in purple color
+                break;
+            case '4':
+                g_form.addLowMessage('Low Priority Incident'); // addLowMessage() method will display message in grey color
+                break;
+        }
+    } else if (state == '6' || state == '7') {
+        g_form.addSuccessMessage('Incident closed'); // addSuccessMessage() method will display message in green color
+    }
+}