Upcoming changes constitute breaking public API changes to both the
client and types modules, therefore this bumps the version numbers of
both modules and adds local replacements to go.mod files such that the
new versions can be used before they are publicly tagged.
* Remove helper func getCommitmentAddress.
This function is only used in one place so removing it does not introduce any duplication. Removing the func also removes the need for errors.Is comparison, which will be very useful in upcoming changes.
* Rename apiError to ErrorCode.
* Don't use inline type for API errors.
* Export webapi errors.
* Export webapi request/responses.
* Add types module for API requests/responses/errors
