Virtual projects

[stepango]

1. Recursive build files inference - no include definitions in settings.gradle, plugin will search for build files
   POC: https://github.com/JakeWharton/gradle-like-bazel/blob/master/settings.gradle

2. Virtual projects per target - settings file in project will apply plugin which generates new settings.gradle which creates project with only required projects in dependencies, looking for root recursively in parent folders