Add Disney Toolbox app

[Nbelles]

Application Submission

• Toolbox for Disney park tech, including Kyber crystal writer and MagicBand+ beacon emulator.
• See full README for more information on the app, it's functionality and usage

Extra Requirements

• No required hardware but useful to have access to Kyber crystals or a MagicBand+

Author Checklist (Fill this out)

• I've read the contribution guidelines and my PR follows them
• I own the code I'm submitting or have code owner's permission to submit it
• I have validated the manifest file(s) with python3 tools/bundle.py --nolint applications/CATEGORY/APPID/manifest.yml bundle.zip

Reviewer Checklist (Don't fill this out)

• Bundle is valid
• There are no obvious issues with the source code
• I've ran this application and verified its functionality