Serialize JIRA issues into GitLab issues

Create a Service that extracts values from a jira-ruby issue that could be passed as arguments to create a GitLab issue and extracts meta-data.

• JIRA issue summary -> GitLab issue title
• JIRA issue description -> GitLab issue description
  • Simplified text handling/conversion

All other fields and attributes in the GitLab issue are set to as if it was created in the GitLab web UI with nothing beyond the above selected. E.g. the issue is in open state and there are no labels associated.

Meta-data:

• timestamp
• original author
• Jira issue Key, etc

Jira issue to get data from (rich description): https://gitlab-jira.atlassian.net/browse/FOO-2