Take screenshots and insert them in the json file

[marcelovani]

Issue https://github.com/cawolf/behat-cucumber-formatter/issues/10

What it does

• Introduces a new configuration to specify the Behat extension that provides screenshots
• The container will first find services with tag id screenshot.service and compare the class vs configuration
• Updated readme
• Keeps track of files for each step
• Sends the files to json output

Testing Add these entries on composer.json

  "repositories": [
    {
      "type": "vcs",
      "url": "https://github.com/marcelovani/behat-screenshot.git"
    },
    {
      "type": "vcs",
      "url": "https://github.com/marcelovani/behat-cucumber-formatter.git"
    }
  ],

then

  "require-dev": {
    "cawolf/behat-cucumber-json-formatter": "dev-10-screenshots-support",
    "bex/behat-screenshot": "dev-61-event-dispatcher-breaking-formatter"
  }

Screenshot

[marcelovani]

New approach, description updated