Fix crash on Intel macOS, Add Device label to 2D view

Thanks to @Bartel-C8, we have now identified the source of crash on Intel macOS 🎉. Devices can now show Device name, or DMX address, or Fixture ID in the 2D layout view. Project data can now not only be exported/imported but also completely cleared out (erased). Several small but important things were fixed.

• Fix Intel Mac crashing on Create New Show - remove unnecessary setup class unregistration
• Display device label (name, id, or dmx) in 2D
• Rework ‘Re-address only’ to ‘Advanced edit’ for clarity
• Add Clear Project data button to clear the addon directory
• Add development related ‘Reload BlenderDMX addon’ button to Extras
• Update translations
• Reload profiles after data clearing or loading
• Fix Volume box migration - prevent always deleting volume box on file load
• Fix gobo projection for fixtures without zoom
• Fix ‘Clear/Clear all’ in Programmer
• Fix ColorPicker when mixing single unit