This is to make them a bit more transparent, and with a bit of Compiler magic we get the 64-bit implementation in the same package
Alot of code is shared between i386/i686/x86 and x86_64 and a lot probably will be used for compatability modes. So we start by moving the headers into one Directory. We will probalby be able to move some cpp files aswell.
Added this in a new directory called Kernel/Arch/x86/ where stuff that applies to both i386 and x86_64 can live.