Update plot schema

Author: camdecoster

test/plot-schema.json

@@ -124,6 +124,11 @@
         false
       ]
     },
+    "displayNotifier": {
+      "description": "Determines whether or not notifier is displayed.",
+      "dflt": true,
+      "valType": "boolean"
+    },
     "doubleClick": {
       "description": "Sets the double click interaction mode. Has an effect only in cartesian plots. If *false*, double click is disable. If *reset*, double click resets the axis ranges to their initial values. If *autosize*, double click set the axis ranges to their autorange values. If *reset+autosize*, the odd double clicks resets the axis ranges to their initial values and even double clicks set the axis ranges to their autorange values.",
       "dflt": "reset+autosize",