Multi-module builds

Every project that applies PublishData resolves its version on its own. With the same configuration they all agree.

Nothing is inherited between projects, with one exception: version in the root gradle.properties is the base version for all of them.

Projects without the plugin keep that raw version. Apply the plugin to the root as well when the root should carry the resolved version too, for example for aggregated Javadoc or a root artifact. Give it the same channels as the modules. Otherwise it resolves with the default channels, and its version can differ from theirs.

There are two ways to share the configuration:

• the settings plugin, which configures every project from settings.gradle.kts,
• convention plugins in buildSrc.

Use one of them, not both.