sched: add struct and object types for task and thread objects

init/main.c

@@ -3,6 +3,7 @@
 #include <socks/test.h>
 #include <socks/printk.h>
 #include <socks/object.h>
+#include <socks/sched.h>
 #include <socks/machine/init.h>
 #include <socks/machine/cpu.h>
 
@@ -20,6 +21,7 @@ void kernel_init(uintptr_t arg)
 	ml_init(arg);
 
 	object_bootstrap();
+	sched_init();
 
 	run_all_tests();