CB-7186 --no-signing will be ignored if --buildId is set

Fixed issue:
1. `webworks build --release --buildId 1234 --no-signing`: `--no-signing` was ignored when a `--buildId` is provided
2. `webworks build [--debug] --buildId 1234`: `--buildId` wasn't set in manifest of bar file in debug build
Ah, yes yes; You're right. We should still add some sort of note describing what the param is used for though. Whether that's in the .option description or a comment in the code. Will definitely be confusing to others.