This should make it easier to find files and (in the future) split things
up into separate libraries.
It also changes around emulator initialization to make it a little more
difficult to do things out of order and a little more sensible as to when
real init work happens.
Also adding a skeleton audio system/driver and reworking CPU register
access to be more extensible.
Checking this in before I break it. Has tons of issues.
Turns out the 360 GPU uses an Adreno (rAdeon)-like r2xx shader format.
VC++'s handling of bitfields is absolutely terrible.
