[Stable] Ver 2.2.7a Straightened VRM & VCI download issue

[h2]Studio/Room[/h2]
[h3]Bug fixes[/h3]

• Adjusted processes to combat the issue where the download of VRM and VCI stops.
  

[h2]Rooms[/h2]
[h3]Changes[/h3]

• Changed the timing of voice chat initiation. From "when your avatar is loaded" to "when you are moved to the room from the loading space."
  
• If a VCI placed in a room is already deleted on THE SEED ONLINE, it will be removed from the room when the room's owner or an administrator enters the room.
  
• Added a feature to change the volume for videos in the ring menu.
  
• You can change the volume from System > Sound > Video Volume.
  

[h2]VCI[/h2]
[h3]New Features[/h3]

• Added an API that can acquire the name of controllers from VCIs.
  
• Following new APIs have been added.
  
• vci.me.GetLeftControllerName()
  
• vci.me.GetRightControllerName()
  
• If controllers don't exist (e.g., the battery ran out), these will return "none."
  
• When the controllers are switched, the result will change following the new controllers being connected.
  

[h3]Improvements[/h3]

• Improved the processing speed of the VCISpringBone.
  

[h3]Bug fixes[/h3]

• Fixed the issue where an error occurred when you tried to attach/detach an inactive attachable object from the VCI script.
  
• Fixed the issue where MatCap is not rendered correctly for VCIs.
  

[h3]Others[/h3]

• Updated the platform Unity version to 2021.
  
• Location and item creators shouldn't have to do anything regarding this change, but if you find any issue, such as particular items not displaying correctly, please report from here.