Initial GUI support (#29)* Initial setup & a few base types* Scroll panels (not tested yet)* Buttons, enum util, better id handling, cleanups* Text support, `getTaggedObject`* Insets support* Labels and dynamic labels* Registration based system* Allow specifying GUI scripts as widgets* Proper `registerGuiElement` error checking* Cleaner insets handling* Cleanup button handling* Item elements* Debug handling rework/cleanup* Improve dynamic label error handling* Scroll panel scroll speed setters* Text field elements* Grid panels* Box elements* Slider elements* Progress bars* Improve texture parsing, minor cleanups* Cleaner icon format* Sprite elements* Fix texture/icon parsing no value handling* Toggle buttons* Cleaner path handling* Error handling & context fixups* No wildcard static imports* Minor cleanups to tab panel parsing* Plain panels: match naming for child widgets* Initial work on meta* Bar documentation* Document insets, textures, and icons* Finalize `gui` command* Box elements meta* Button meta, minor cleanups, remove event for now* Dynamic label element* Grid panel meta + minor rename for consistency* Item elements meta* Slider element meta* Labeled slider meta* Properly document slider context values* Label elements meta* Plain panel elements meta* Scroll panel elements meta* Sprite element meta docs* Tab panel element meta* Text element meta* Text field elements meta* Toggle buttons meta docs* Consistency* Bump LibGUI and other deps* Revert outdated `ItemTag` change* `getTaggedStringList`: support in-line `ListTag`s* `bar` -> `progress_bar`* Consistent box panel naming* Clearer dynamic label warning* Grid panels: `gap` -> `spacing`* Sliders: direction must match axis* Clarify slider dynamic label meta* `Item` element: `duration` -> `frame_duration`* UV handling: width & height instead of 2 points* Better gui script handling in screen event* `GUI` command: support closing* Why is `gui` `Holdable`* `SpriteElement`: `frame_time` -> `duration`* `TextFieldElement`: consistent naming* Fix `gui` command syntax* Meta fixup (commit: 0c802bb)