20191121 Update

Version: 2.7.1 -> 2.7.2

• Added 'Thumbnail Size' button to Control Panel

• Added 'Fix Motion Files' to Live2D Editor The program will try to fix some motion issues, please select all motion files you want to use (even if it looks fine). Be sure to back up the source files before repairing!

• New Json properties

• UI changes

• Bug fixes and code optimization