add delete by bucket name to the CLI

[russorat]

Looks like you can only delete by id. i would like to delete by the name of the bucket.

./bin/darwin/influx bucket delete -h
Delete bucket

Usage:
  influx bucket delete [flags]

Flags:
  -h, --help        Help for the delete command
  -i, --id string   The bucket ID (required)

Global Flags:
      --host string    HTTP address of Influx; Maps to env var $INFLUX_HOST (default "http://localhost:9999")
      --local          Run commands locally against the filesystem
      --skip-verify    SkipVerify controls whether a client verifies the server's certificate chain and host name.
  -t, --token string   API token to be used throughout client calls; Maps to env var $INFLUX_TOKEN