Improve threading

utilities/src/rse_task_linux.c

@@ -18,5 +18,7 @@ uint8_t rse_task_join(rse_thread_t* thread_id)
     return result; //TODO: Do error handling
 }
 
-void rse_task_delay(void)
-{}
+void rse_task_exit()
+{
+    pthread_exit(NULL);
+}