[HACKATHON] DBFS Async Deletes

[adrian-ionescu]

Adds the following commands which forward to the /dbfs-async endpoint added in https://github.com/databricks/universe/pull/51985

(db_cli_env) adrian@x1e:~/dev/databricks-cli$ db fs async rm
Usage: databricks fs async rm [OPTIONS] COMMAND [ARGS]...

  Remove files from dbfs asynchronously.

Options:
  --debug         Debug Mode. Shows full stack trace on error.
  --profile TEXT  CLI connection profile to use. The default profile is
                  "DEFAULT".

  -h, --help      Show this message and exit.

Commands:
  cancel  Cancel your rm-async request.
  start   Start a rm-async request.
  status  Check the status of your rm-async request(s).
  wait    Wait until your rm-async request is complete.