[Gradle] Support independent versioning and conditional publishing

**Is your feature request related to a problem? Please describe.**

1. In a monorepo, some modules may require a different versioning strategy if tightly coupled to different dependencies (i.e. compiler plugins are tied to compiler versions while runtime modules are independent)
2. In a sufficiently large monorepo, publishing each module each time, even when not changed can introduce a lot of noise (especially when considering irrelevant renovate PRs)

**Describe the solution you'd like**

As an opt-in feature, Gradle modules can be versioned independently and conditionally released only when the code changes. This would have to model a bit of how NPM-lerna repos work with module specific changelogs and independent versioning.

**Describe alternatives you've considered**

Could be easily supported by breaking out into separate repos, but that isn't always ideal.