More standard support for the `BusComponent` interface.

Made the testing of the timer work.

Also made some initial timer validation.

Running under a single call.
This required increasing variable size from u8 to u16.

Also removed the not needed bitwise operation.

There's already two drivers implemented: Null and Print (to stdout).

Support for set of video, audio and timer.
Now with support for toggling audio in the SDL version.

Made test on inst timing pass

large instructions values