sdio: initial SDIO HAL implementation

[rmsyn]

Thank you for your contribution!

We appreciate the time and effort you've put into this pull request. To help us review it efficiently, please ensure you've gone through the following checklist:

Submission Checklist 📝

• [ ] I have updated existing examples or added new ones (if applicable).
• [ ] I have used cargo xtask fmt-packages command to ensure that all changed code is formatted correctly.
• [ ] My changes were added to the CHANGELOG.md in the proper section.
• [ ] I have added necessary changes to user code to the Migration Guide.
• [ ] My changes are in accordance to the esp-rs developer guidelines

Extra:

• [ ] I have read the CONTRIBUTING.md guide and followed its instructions.

Pull Request Details 📖

Description

Provides the initial skeleton for the embedded_hal::mmc::MmcOps implementation for the SDIO peripherals on the ESP32C6 microcontroller.

Testing

Doc tests for now.

Integration tests via examples program is WIP.