Started main kernel functions

include/kernel.h

@@ -1,6 +1,16 @@
 #pragma once
 
+#include "priorityqueue.h"
+#include "module.h"
+#include <stddef.h>
+
 struct kernel_t
 {
+    struct priority_queue_t *priority_queue;
+};
 
-};
+extern struct kernel_t kernel;
+
+int do_syscall(struct kernel_t *kernel, size_t id, size_t arg1, size_t arg2, size_t arg3);
+
+int load_module(struct kernel_t *kernel, struct module_t *module);