Update mqtt_eventstream with ignore_call_service (#4705)

* Update mqtt_eventstream with ignore_call_service

Documentation for ignore_call_service

* update docs to reflect new functionality

updated docs based on PR feedback

* update example

source/_components/mqtt_eventstream.markdown

@@ -33,6 +33,10 @@ subscribe_topic:
   description: Topic to receive events from the remote server.
   required: false
   type: string
+ignore_event:
+  description: Ignore sending these [events](/docs/configuration/events/) over mqtt.
+  required: false
+  type: list
 {% endconfiguration %}
 
 ## {% linkable_title Multiple Instances %}
@@ -44,6 +48,9 @@ Events from multiple instances can be aggregated to a single master instance by
 mqtt_eventstream:
   publish_topic: master/topic
   subscribe_topic: slaves/#
+  ignore_event:
+    - call_service
+    - state_changed
 ```
 
 For a multiple instance setup, each slave would publish to their own topic.