Add lock_code_hash to deployment.toml

[eval-exec]

This PR want to add lock_code_hash to [multisig_config] in deployment.toml, and let it default to be Multisig Legacy

Also, add comment for sighash, multisig legacy, multisig v1 script info

[eval-exec]

Request for review: @sunchengzhu @quake @zhangsoledad @driftluo @XuJiandong

[XuJiandong]

This is a breaking change. Currently, we can deduce the code_hash from the transaction, as there are only two possible values: legacy or v2.

However, this change would require us to:

1. Update all existing documents
2. Update all existing scripts

These updates are unnecessary and should be avoided.

[eval-exec]

This is a breaking change. Currently, we can deduce the code_hash from the transaction, as there are only two possible values: legacy or v2.

However, this change would require us to:

1. Update all existing documents
2. Update all existing scripts

These updates are unnecessary and should be avoided.

Fixed by #652