Automatic CI Downloads

[kiwidoggie]

Currently the way the loader is structured, it will only be able to source kernel executables either from being embedded into the loader itself, or via a network socket.

The loader should have the ability to reach out to GitHub releases/actions and download the latest stable build of Mira and execute provided it has internet connection.

As a fallback, all Mira supported firmwares should be embedded into the loader to ensure that firmware agnostic launching of Mira will happen.