Bazel support

[tandel-pratik]

It'd be great if pbandk had bazel support. For instance rules_proto supports multiple languages including Java and Scala and adding Kotlin support would be great: https://github.com/stackb/rules_proto

[garyp]

We don't use bazel internally, so this is unlikely to get done unless someone contributes it and can commit to help us maintain it for future releases. We'll gladly accept an external contribution of bazel support though.