Apply request_on_entry_save config

Author: stuartcusackie

src/ServiceProvider.php

@@ -36,7 +36,9 @@ protected function registerCommands()
 
     protected function registerListeners() {
 
-        Event::listen(EntrySaved::class, EntrySavedListener::class);
+        if(config('statamic-cache-requester.request_on_entry_save', true)) {
+            Event::listen(EntrySaved::class, EntrySavedListener::class);
+        }
 
         return $this;