SSDM-8698 : isSessionActive function from v3 missing

openbis/source/java/ch/systemsx/cisd/openbis/public/resources/api/v3/openbis.js

@@ -2045,6 +2045,17 @@ define([ 'jquery', 'util/Json', 'as/dto/datastore/search/DataStoreSearchCriteria
 			});
 		}
 
+        this.isSessionActive = function() {
+            var thisFacade = this;
+            return thisFacade._private.ajaxRequest({
+                url : openbisUrl,
+                data : {
+                    "method" : "isSessionActive",
+                    "params" : [ thisFacade._private.sessionToken ]
+                }
+            });
+        }
+
 		this.getDataStoreFacade = function() {
 			var dataStoreCodes = [];
 			for (var i = 0; i < arguments.length; i++) {