Started implementation of first event/message passing system

BarinkEngine/EventSystem/EventEmitter.cpp

@@ -0,0 +1,25 @@
+#include "../Include/EventSystem/EventEmitter.h"
+
+
+void EventEmitter::Subscribe(EventListener& subscriber)
+{
+  subscribers.push_back(&subscriber);
+}
+
+void EventEmitter::Unsubscribe(EventListener& subscriber)
+{
+  subscribers.remove(&subscriber);
+}
+
+void EventEmitter::EmitEvent(Event& incident)
+{
+	// Notify all subscribers an event has taken place 
+	for (auto it = subscribers.begin(); it != subscribers.end(); ++it)
+	{
+		(*it)->ReceiveEvent(incident);
+	}
+}
+
+EventEmitter::EventEmitter() {
+	subscribers = std::list<EventListener*>{};
+}