Allow ignoring project by path

[ansman]

I have a project where multiple modules have the same name but different path (:feature1:sample, :feature2:sample) and currently I cannot ignore just one of them since you specify the name of the module which in both cases is sample.

This could be done in a backwards compatible way by checking if the ignored project starts with : and if so project.path is used instead.

[shanshin]

As part of the migration of separate BCV functionality to Kotlin Gradle Plugin, the addition of new features to a separate plugin has been discontinued.

This feature is not relevant for KGP, because it uses project isolation and does not specify project names in one place.