Cucumber feature REST API - support for required fields

Cucumber feature REST API - support for required fields

Allow adding values for issue fields/custom fields when using the cucumber feature REST API. (import/feature)

If Jira is configured with required fields for the Test Issue type it won't be possible to use this endpoint as it is currently not possible to provide values for these fields in the REST API request.

ACs:

• The "Import Cucumber Tests" endpoint for importing feature files must provide two a new parameters for JSON files to be used as a templates for creating new Tests and Pre-Conditions respectively.
• Xray must support a new parameter named "testInfo" to pass the JSON file containing the fields for creating Tests.
• Xray must support a new parameter named "preCondInfo" to pass the JSON file containing the fields for creating Pre-Conditions.
• The JSON file format is the same as Jira uses for the REST API (https://docs.atlassian.com/software/jira/docs/api/REST/8.2.0/?_ga=2.111455874.746998918.1558343025-232874918.1557136424#api/2/issue-createIssue)
• The "Summary" and "IssueType" fields will be ignored by Xray.
• The "parent" field also makes no sense, as Tests and Pre-Conditions can't be Sub-Tasks. Xray will ignore this field as well.
• Xray will return any error originated in Jira when creating Tests or Pre-Conditions.