* cannon: Extract handleBranch, outputState

* cannon: Define MIPSInstructions.sol as a library so we can set visibility modifiers

* cannon: Flatten cpu fields in sol files

* cannon: Rework sol cpu field handling

* cannon: Update MIPS contract version

* cannon: Run snapshots, semver lock

* cannon: Update go logic to match sol

* cannon: Move outputState() back into MIPS.sol

* cannon: Mark pure functions

* cannon: Run semver-lock

* cannon: Update state.json format in test_data

* cannon: Fix variable names to match style guide

* cannon: Undo comment formatting change

* cannon: Style fix - use named parameters

* cannon: Run semver-lock