Update v0_1::ChainConfig::from(v0_3::ChainConfig)

[tbro]

Update committable version in sequencer and use it to coerce a v3 Commitment into a v1 commitment.

• relevant upstream: Implement From<[u8; 32]> for Commitment<T> commit#52
• removes a TODO.
• adds tests

This PR:

This removes a best effort (and untested) downgrade of ChainConfig commitment in favor of using raw bytes (recently added to committable). Previously a v1 ResolvableChainConfig was derived from a v3 version using a a full cycle of serialization/de-serialization. Now that we can create a Commitment from some bytes, we can avoid that extra work. Some tests have been added to confirm expectations.

Key places to review:

• espresso-sequencer/types/src/v0/v0_3/chain_config.rs