Rename test project directory
Add pkgbuild.py

* Set conf.input_path to os.getcwd if it was not set in parse_args.
* Remove input_path arg from package_list.
* Rename _get_version_from_pkgbuild to pkgbuild.version.
* Rename _get_version_from_pkgbuild to pkgbuild.arch_list.
* Change package dict to a ConfigDict.
* Replace old dict keys with namespace.