Root module selection works incorrectly

[ashakirin]

Root module selection sorts absolute module paths alphabetically, that is not correct. For example for paths:
Users/xxx/root/common/pom.xml
Users/xxx/root/services/pom.xml
Users/xxx/root/pom.xml

the Users/xxx/root/common/pom.xml will be selected.

The criteria must be updated to:

        return modules.stream()
                .sorted((m1, m2) -> m1.getBuildFile().getAbsolutePath().toString().length() - m2.getBuildFile().getAbsolutePath().toString().length())
                .findFirst()
                .orElse(modules.get(0));
    }