Deploy to PyPI via Travis CI

[niauah]

References:

• https://setuptools.pypa.io/en/latest/userguide/quickstart.html
• https://packaging.python.org/en/latest/specifications/pypirc/
• https://twine.readthedocs.io/en/latest/#twine-check

[niauah]

確認 6c0147e tī local的效果：

$ python3 -m setuptools_scm
0.0.3

[niauah]

pypi 嘛設定權限hōo我kah 阿莉

設定好--ah。