Close child incident (ServiceNowDevProgram#739)

* Create clientScript.js in close child incident

* Create serverScript.js on close child incident

* Create readme.md on close child incident

Author: riya-misra-1

UI Actions/Close child incident/clientScript.js

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+function popUpClientScript(){
+	var answer = confirm('Are you sure you want to close the attached child incident'); // confirm message to ask for confirmation
+	if(answer == true){ //check if answer is true 
+		gsftSubmit(null,g_form.getFormElement(),'sys_demoaction'); // calling server ui action to update state
+	}
+}

UI Actions/Close child incident/readme.md

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+This is a ui actions that close the child incident directly from the parent incident
+
+Two actions for this :
+1. Client side ui action from which button is shown and onClick of that button server side action will be performed
+2. Server side ui action that update the state of that child incident to closed

UI Actions/Close child incident/serverScript.js

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+var gr = new GlideRecord('incident');
+gr.addQuery('parent_incident',current.sys_id); //querying over particular parent incident
+gr.query();
+while(gr.next()){
+	gr.state = '7'; //updating the state of the child incident to closed
+	gr.update();
+}