Simplified logic for ease of dev and testing. Seems to work quite wel…

Refactor checksum logic and add response handling

Add .env to .gitignore

ITS WORKING (sort of)

Update README.md

Correct handling of empty data in test_vendie

Refactor cashless_device and states, add test_vendie

Add return type to check_connections method in vendie package

Refactor start method in cashless device

Add startup print statement in cashless_device module

Add vendie package with required functionalities

Update README.md

Update README.md

Update README.md

Add files via upload

Create README.md

Update vendor state management and debugging tools

Initial Commit