Jira-metrics-extract

* Added title options for all charts
* Added deadline option for burnup forecast chart

* Add Docker documentation

* Fixed a bug with calculating the CFD when statuses are skipped
* Added --throughput output
* Percentiles are now saved to file, not printed, when using --percentiles
* Adding charting output (with optional dependencies - see above)

* Add support for `--format=json`
* Output all dates in ISO format (YYYY-MM-DD)

* Add support for `Queries` and `Known values`.

* When an issues moves between two JIRA states that are mapped to the same
workflow step, record the *earliest* date, not the most recent
* When an issue moves backwards in the flow as defined by the sequence of
workflow steps, retain the *earliest* date the issue entered the given
step (and erase any dates recorded for all subsequent steps)