Bumps spine-logging dependency, applying its API to some of the classes, which are going to be used when migrating codegen to ProtoData.
Removes the build code which always removes of vanilla Protobuf code. This is no longer needed because recent ProtoData versions mostly handle the duplicated code issue.
This PR:
spine-logging
dependency, applying its API to some of the classes, which are going to be used when migrating codegen to ProtoData.