Consolidate state structure to an enum. Move message decleration of r…

[NoahSprenger]

This pull request includes several changes to the project, focusing on dependency updates, code refactoring, and structural changes. The most important changes include updating the dependencies in Cargo.toml, modifying the Common enum to use a new reset reason type, and removing the ResetReason enum from sensor.rs.

Dependency updates:

• Cargo.toml: Added stm32h7xx-hal dependency with specific features and updated the std feature to include stm32h7xx-hal/arbitrary. [1] [2]

Code refactoring:

• src/lib.rs: Modified the Common enum to use stm32h7xx_hal::rcc::ResetReason instead of sensor::ResetReason.
• src/sensor.rs: Removed the ResetReason enum, which included various reset reasons and their descriptions.

Structural changes:

• src/state.rs: Commented out the State struct and its implementation, and renamed StateData to State. [1] [2]…eset reason back to stm32h7xx-hal crate.