Amulet-map-editor

Set up the locale in the app

Fixes
- Fixes an issue loading some sponge schematic files.
- Added the sponge schematic to the import tool.

Select tool improvements
- Added nudge buttons
- Moved text into lang file
- Added tooltips

Teleport tool improvements
- Reformatted the UI layout
- Added copy and paste support for the coordinates.
- Moved text into lang file
- Added tooltips

Set up nightly builds

Additions:
- A top down 2D view for easier navigation and viewing
- A chunk tool for modification of chunks
- A prune operation has been added to the chunk tool
- Importing and exporting of the sponge schematic format
- Drag and drop importing
- A better selection box
- Partially added language support
- Added a sky box with compass

Fixes
- fixed rain and some lighting issues
- fixed program hang when importing large structures
- fixed some renderer issues
- some threading issues
- disabled rendering when running operations to make them faster
- better support for modded worlds (still WIP)
- some errors with height maps

Changes
- Tools and operations have more control over the editor than they had before.
- Improved older OpenGL support
- Updated the leveldb library
- Cleaned up the pyinstaller build
- Structures are now handled in the same way that worlds are