Added codegen to register components, and started reworking lua

ecs-serial/include/ecs-serial.h

@@ -1,3 +1,5 @@
+#include <functional>
+#include <ostream>
 #pragma once
 #include "ecs.h"
 
@@ -57,6 +59,17 @@ namespace ecs::serial {
 		internal::functions.insert({ComponentID::id<T>, {func1, func2, func3}});
 	}
 
+	template <typename T>
+	void register_component_custom(std::function<void(std::ostream&, ecs::Component*)> func1, std::function<void(std::istream&, Component*)> func2) {
+		auto func3 = [] () -> Component* {
+			return new T();
+		};
+
+		internal::functions.insert({ComponentID::id<T>, {func1, func2, func3}});
+	}
+
 	void serialize(std::ostream& os, Entity* entity);
 	void deserialize(std::istream& is, Manager& manager);
+
+	void serialize_ids(std::ostream& os);
 }