avoid deprecation warning for LooseVersion

[tgpfeiffer]

The current version emits a warning

$ python -Wdefault demo.py 
.../japanize_matplotlib.py:16: DeprecationWarning: distutils Version classes are deprecated. Use packaging.version instead.
  is_support_createFontList = LooseVersion(matplotlib.__version__) < '3.2'
.../site-packages/setuptools/_distutils/version.py:345: DeprecationWarning: distutils Version classes are deprecated. Use packaging.version instead.
  other = LooseVersion(other)

so I have updated the code to use packaging.version.Version instead.

[tgpfeiffer]

duplicate of #27