Visual Tweaks

## 1.1.0

### Added
- Drag and drop packs onto the Totem Tweaks settings screen to add them
- Full resource packs are split automatically: the totem texture and totem sound become separate options, and the rest of the pack is ignored
- Drop a single .png to use it as a totem texture, or an .ogg to use it as a totem sound
- Support for 3D totem models, including their extra models and textures
- Imported packs use the original pack's description as their credit

### Changed
- Credits no longer repeat the pack name twice
- The Add Your Own tab now explains drag and drop

### Notes
- MP3 and WAV files aren't supported. Convert them to .ogg first (Audacity works).