Quite a lot of changes. Especially to ContextMenu.

[tanishisherewithhh]

1. Providing Skin System for ContextMenu, providing global ContextMenuProvider and SkinRenderers. Including 2 default skins Classic and Minecraft.
2. ContextMenuScreen factory used for the same above changes.
3. Various code improvements and test features.
4. New widget anchoring system and actually loading from a backup file if found.
5. More changes and a full reformat.
6. Supports 1.21.1
7. The DynamicHudTest.java class is now automatically added for integration if the argument --dynamicHudTest true is passed while running Minecraft in program arguments.

TODO:

• Widget Tray :- The idea is that a user can discard/remove widgets from the screen temporarily and place them in a "tray" to be used later. So, the tray acts as a store conveyer to remove excess unneeded widgets for the user.
• New Modern Skin Renderer.
• Add DynamicHUD YACL config screen to the game's options screen and remove Mod-Menu Integration (optional for this PR).
• More customization to widgets themselves for the user (like the background color when in the editor).
• Fix a few more issues regarding screen resize and widgets.
• Add more versatile HUD rendering.
• Add more usefull and fast DrawHelper functions.
• Fix bloated and badly coded ColorOption

[tanishisherewithhh]

This wont be merged until some of the TODO have been completed.