Paging

[Sploder12]

Paging is an important part of memory management.
It also comes with many benefits, like disconnecting addresses from their physical locations.
Also it gives us security.

Our OS currently loads at most 21kb from disk into the physical address space, paging requires 8kb at minimum for static data.
This may become an issue later.

For now having the ability to interact with the MMU is good enough and we can simply use identity-paging,
the actual memory management part will come later.