Callback is done using a global window function.
Printing is performed to the console output.
This is still a work in progress and the final display of the image should be included in the Web interface.

For the bool to int conversion.

To avoid WASM serialization issues.

The solution makes use of the chrono module to obtain time and the image module to save PNG files.
The Web version is still pending support for printing.

The image data buffer printing is still pending.
Still a lot of TODOs and edge cases to be solved.

Allowing better directory usage.
Created initial printer file.

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

The complete GB, CPU and MMU linking is done.

Also added CH4 public WASM API