main/py3-imagesize: upgrade to 1.4.1
https://github.com/shibukawa/imagesize_py/compare/1.3.0...1.4.1
- added support for webp files
- fixed support for VP8X
- Update imagesize.py
- bump version to 1.4.0
- 1.4.1: add __version__ attribute
- add __init__.py retag 1.4.1