## Changes
This PR adds the `bundle_uuid` helper function that'll return a stable
identifier for the bundle for the duration of the `bundle init` command.
This is also the UUID that'll be set in the telemetry event sent during
`databricks bundle init` and would be used to correlate revenue from
bundle init with resource deployments.
Template authors should add the uuid field to their `databricks.yml`
file they generate:
```
bundle:
# A stable identified for your DAB project. We use this UUID in the Databricks backend
# to correlate and identify multiple deployments of the same DAB project.
uuid: {{ bundle_uuid }}
```
## Tests
Unit test