Minimal ED64 support

[networkfusion]

Description

Adds the basic needs to run ROMs on V series hardware (specifically the ED64P).

NOTE: this PR will not implement the ability to load the latest firmware and relies upon libCart for basic needs.
Improvements will be made in further PR's.

Motivation and Context

#15 but without all of the fat (needed for the future).

How Has This Been Tested?

Screenshots

Types of changes

• Improvement (non-breaking change that adds a new feature)
• Bug fix (fixes an issue)
• Breaking change (breaking change)
• Config and build (change in the configuration and build system, has no impact on code or features)

Checklist:

• My code follows the code style of this project.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have added tests to cover my changes.
• All new and existing tests passed.

Signed-off-by: GITHUB_USER <GITHUB_USER_EMAIL>

Summary by CodeRabbit

• New Features

  • Added support for the ED64 flashcart, enhancing gameplay for Nintendo 64 games.
  • New instructions for downloading and using ED64 and ED64P ROMs have been documented.
  • Introduced detailed guidelines for uploading ROMs via USB using UNFLoader.

• Documentation

  • Expanded the README to clarify installation and usage steps for ED64 and ED64P.
  • New README file specific to the ED64 flashcart added, detailing compatibility and usage.

• Bug Fixes

  • Improved initialization logic for different cartridge types to correctly support ED64 functionality.

[ariahirose64]

inder new account and im going to fix waht docker broke if i can

[lewilou22]

I have continued this on a new PR , saving now works .