Feat: Bench `ruint` vs `rug` `Integer` vs `U256` on basic operations

[0xOsiris]

Bench ruint vsrug Integer vs U256 on basic arithmetic operations such as *, /, %, ..etc. Get an idea of which is optimal across the code base as far as speed, and switch all Integer types across the code base.

[0xKitsune]

The lib has been updated to use alloy, closing as completed.