Should allow simple testing of the core.

There's a new rust stable version.

Allows better understanding of the message.

More standard support for the `BusComponent` interface.

Allows blargg's test ROM to pass.

This reverts commit 193f61a2.

This should fix a cargo network issue.

Made sure that OAM DMA takes 160 cycles to process.

This is a way of controlling the bytes that have already been written by the DMA controller.

Clarifies the boot state handling.

Improved some comments for DMA.

Also added a series of logging primitives to the TS code.

Also links to the new file from the README.md file.

Added more pedantic validations preventing simple dummy data from being loaded.

Adds unwrap() to the run_image_test() calls.

Support for address based testing

Closes #38

See merge request !41

Support for some basic Python testing.
Handling of loading error with proper error propagation.

Made the testing of the timer work.

Also made some initial timer validation.