* cannon: Extract MIPS execute logic from mips.{go,sol}

* cannon: Add compiler version and license to MIPSInstruction.sol

* cannnon: Remove visibility modifier from library function

* cannon: Extract mips sign extend functions

* cannon: Move MIPS.sol comment to avoid line break, clarify comment

* cannon: Run `pnpm lint:fix`

* cannon: Run `pnpm semver-lock`

* cannon: Run `pnpm snapshots`

* cannon: Use namespace import for MIPSInstructions