20200701 Update

[h3]Version: 3.1.7 -> 3.2.0[/h3]

• Added support for Spine Expansion (DLC)
  
  
• Json Editor update
  
  
• Video plugin update
  
  
• Bug fixes

https://store.steampowered.com/app/1350680/Live2DViewerEX__Spine_Expansion