Adding a timer

include/components/timer_component.h

@@ -0,0 +1,18 @@
+/*
+** EPITECH PROJECT, 2019
+** Gamacon
+** File description:
+** gravity_component
+*/
+
+#pragma once
+
+#include "component.h"
+
+struct timer_component
+{
+    gc_component base;
+    float time_left;
+};
+
+extern const struct timer_component timer_component;