Multi Builder Tool

Fixed startup crash on server

Added EMI support

Small code cleanups

Tested with Mekanism, Extreme Reactors, Immersive Engineering

initial release for 1.21.1

Fixed issue when multibuilder UI cannot be closed in some cases

Added Chinese translation. Thanks to FutureLin-JM

Minor translation fix

Added structures for:

• Immersive Tech
• Immersive Petroleum

Fix preventing item loss when player press number buttons when GUI opened