This commit reorganizes the logic in parseMetric to have it take in a MetricConfig so that the extractor can find the config and properly handle the case when there's no config found.
This commit allows to extract the metric name from the topic path. Now
it can be configured if all metrics are in a object in a certain topic
or if every topic contains exactly one metric. However, currently these
modes can not be mixed.
This should solve !26
TODO:
* Update documentation
* Add unit tests
Will Moss
alessandro negrin
michey
Christoph Petrausch