ability to import existing Cucumber/Gherkin .feature files to Xray tests

[bitcoder]

As part of the supported workflows, when managing Cucumber/Gherkin .features in git for example, we need to be able to import/synchronize the .feature to Xray Test issues.

• cloud: https://docs.getxray.app/display/XRAYCLOUD/Importing+Cucumber+Tests+-+REST+v2
• server/datacenter: https://docs.getxray.app/display/XRAY/Importing+Cucumber+Tests+-+REST

Note: the Xray Jenkins plugin has this supported as a separate task: https://docs.getxray.app/display/XRAY/Integration+with+Jenkins#IntegrationwithJenkins-Xray:CucumberFeaturesImportTask