Add structs used in the GDT
Add structs used in the GDT

iankronquist/kernel-of-truth,awensaunders/kernel-of-truth,Herbstein/kernel-of-truth,iankronquist/kernel-of-truth,Herbstein/kernel-of-truth,iankronquist/kernel-of-truth,iankronquist/kernel-of-truth,awensaunders/kernel-of-truth,awensaunders/kernel-of-truth,iankronquist/kernel-of-truth,Herbstein/kernel-of-truth