Recurrent Complex Volts

Full port of 0.5.1.0 from 1.20.1 Forge to 1.21.1 NeoForge

• Added an Auth -> Loot GUI for creating and editing RC inventory generators.
• Added /rc loot commands.
• Added support for assigning vanilla/datapack loot table IDs to container markers.
• Added an Auth -> Tools page for quickly getting the Selector, Floating Selector, and Inspector.
• Added a config/GUI/command toggle for disabling bundled structures in default RC worldgen.
• Added Create/vanilla .nbt schematic import support in the Schems workflow.
• .schem, .schematic, and .nbt schematics can now be previewed and converted to RC structures.
• Improved Create schematic compatibility, including better handling for Create blocks such as waterwheels.
• Schematic conversion now defaults the new RC structure ID to the schematic name.
• Added structures/inactive support for keeping structures installed but ignored.
• Fixed several GUI layout and paging issues.