EMK TODO : =not done, x=done, ?=semi-done
========
[x] GDT (not including TSS)
[x] IDT (not including any form of IRQ)
[X] Physical memory manager
[X] Pagining
[X] Virtual memory allocator
[X] Heap allocator
    - [X] First-fit
[X] SMP
[ ] IPC
    - [ ] Shared mem
    - [ ] Msg queues
    - [ ] Signals
    - [ ] Sockets
[ ] Scheduler
[?] User mode
[ ] Handoff