Added search clear functionality to filtering

Change-Id: Id22b067c8bcc0e05aee6325153154ea7a81f17ae
Signed-off-by: Iftekharul Islam <iislam@us.ibm.com>
diff --git a/app/server-health/controllers/sensors-overview-controller.js b/app/server-health/controllers/sensors-overview-controller.js
index 90616b1..57e3b65 100644
--- a/app/server-health/controllers/sensors-overview-controller.js
+++ b/app/server-health/controllers/sensors-overview-controller.js
@@ -41,6 +41,11 @@
                     return JSON.stringify(dt);
                 };
 
+                $scope.clear = function(){
+                    $scope.customSearch = "";
+                    $scope.searchTerms = [];
+                }
+
                 $scope.doSearchOnEnter = function (event) {
                     var search = $scope.customSearch.replace(/^\s+/g,'').replace(/\s+$/g,'');
                     if (event.keyCode === 13 &&