Added builtin components (placeholder for now)

headers/Systems/ECS/BuiltinComponents.hpp

@@ -0,0 +1,17 @@
+/*
+ * SPDX-FileCopyrightText: Dora "cat" <cat@thenight.club>
+ * SPDX-License-Identifier: MPL-2.0
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public License,
+ * v. 2.0. If a copy of the MPL was not distributed with this file, You can
+ * obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+#include "../ECS.hpp"
+
+namespace Tourmaline::Systems::Components {
+struct Position : public Tourmaline::Systems::ECS::BaseComponent {
+  Position(double x = 0, double y = 0, double z = 0) : x(x), y(y), z(z) {}
+  double x, y, z;
+};
+} // namespace Tourmaline::Systems::Components