Feature/new gs messages

Core ServiceNow APIs/GlideSystem/New Additional Message API/README.md

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+As part of the Zurich release, additional message methods were introduced to display at the top of forms.
+addHighMessage()
+addLowMessage()
+addModerateMessage()
+addSuccessMessage()
+
+<img width="1277" height="192" alt="image" src="https://github.com/user-attachments/assets/4a824bbb-92d0-4108-ab73-bdc263404c5a" />
+

Core ServiceNow APIs/GlideSystem/New Additional Message API/script.js

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+//Table: Incident
+//When to Run: After update
+(function executeRule(current, previous /*null when async*/ ) {
+
+    if (current.priority == 2)
+        gs.addHighMessage("This is a high incident, and assign it as soon as possible.");
+    if (current.state == 6)
+        gs.addLowMessage("The incident will be marked as closed automatically after 7 days.");
+    if (current.state == 6)
+        gs.addModerateMessage("Refer to the resolution information section for the resolution notes.");
+    if (current.assigned_to.changes())
+        gs.addSuccessMessage("The notification has been sent to the assignee.");
+
+})(current, previous);