Updated YAML to include new UUID support for Claims

1. Because this is still a developer build and probably nobody is using it yet, I didn't attempt to convert existing data.
2. I re-indexed the YAML files to where the key is the UUID and the "legacy id" is a value.
3. I have tested this and it does work as is but...
4. I will return to finish this up once your PlayerData object has been updated to include UUID methods.