[MM-35077] Add basic support for plugin intra-cluster communication (#17495)

* Add basic support for plugin intra-cluster communication

* Some renaming for added clarity

* Allow sending cluster event to specific nodes

* Improve naming and documentation

* Improve logging

plugin/hooks_timer_layer_generated.go

@@ -162,3 +162,9 @@ func (hooks *hooksTimerLayer) ReactionHasBeenRemoved(c *Context, reaction *model
 	hooks.hooksImpl.ReactionHasBeenRemoved(c, reaction)
 	hooks.recordTime(startTime, "ReactionHasBeenRemoved", true)
 }
+
+func (hooks *hooksTimerLayer) OnPluginClusterEvent(c *Context, ev model.PluginClusterEvent) {
+	startTime := timePkg.Now()
+	hooks.hooksImpl.OnPluginClusterEvent(c, ev)
+	hooks.recordTime(startTime, "OnPluginClusterEvent", true)
+}