Introduction of Item Stack Components and NBT rework

[Seeloewen]

A little while ago, Mojang released snapshot 24w09a which replaced the NBT system that had existed for almost the entirety of Minecraft with the new item stack components system. Because this is pretty different from how NBT worked, the software will need major changes to function again. I'm also taking this opportunity to rework how the old NBT works as well. The current implementation of NBT is quite flawed and unstable, so this would be the right time for improvements. All these changes will require some time since I need to make fundamental adjustments to the codebase.

Here's a list of what needs to be updated:

• Change how NBT is displayed in the main window
• Change how NBT is detected in the main window
• Change how NBT is saved in the main window
• Add NBT editor for editing the NBT tags.
• Add detection / saving for Item Stack Components in main window
• Add Item Stack Components editor
• Change how NBT is detected and add detection of Item Stack Components in duplicate finder
• Add support for Item Stack Components in item remover
• Add support for Item stack components in item adder
• Change how NBT is edited and handled in item adder: also use the new NBT editor/Item Stack Components editor