implementing checking for duplicate package name in android artifacts

This is very useful because if we ignore case in which several libraries or apk-project have similar package-name in AndroidManifest.xml declared -> R.java of libraries or apk-project may be overridden and lost(and cause compilation error).

In this case I'm writing to log warning message with description of what artifacts has similar package.

example output:
[WARNING] Duplicate packages detected in next artifacts:
    artifacts: "aar_library_1" "application" have similar package: com.example.application
    artifacts: "apklib_library_1" "apklib_library_2" have similar package: com.example.apklib_library