Integration with Behat Cucumber Json Formatter

[marcelovani]

Background

We use Behat Cucumber Json Formatter to send the test results to Cucumber Jenkins

Currently, it is not possible to attach screenshots to the reports.

This functionality is also mentioned here cawolf/behat-cucumber-formatter#10

Proposal

Trigger an event when files are uploaded, to allow Cucumber Formatter to subscribe to the event and attach the image Url to the json output.

[marcelovani]

I did a POC that seems to work for my needs. It requires changes on both packages, see

#58
cawolf/behat-cucumber-formatter#12

[marcelovani]

PR Merged #59