Multiple XCom Values per Task

[mwalker9]

When there are multiple xcom values per Airflow task being returned, it isn't possible to differentiate between them because the only dimensions on the xcom gauge are the dag_id and task_id. I propose that a key_name dimension, or something similar, be added to the xcom gauges.

[abhishekray07]

Feel free to submit a pull request!

[benmackenzie-exos]

it's a good idea.