As a user, I should be able to use Doc Gen on Agile Boards

Document Generator must provide a new option in order to allow users to export all issues from:

• Scrum Board
• Kanban Board
  • Allows users to export all the issues that belong to the Scrum / Kanban Board
  • Allows users to export issues from each column who belongs to a Scrum / Kanban Board
• Backlog Board
  • Allows users to export all the issues that belong to the Backlog
  • Allows users to export issues from each sprint who belongs to the backlog
• Releases
  • Allows users to export all issues that belong to the Release
  • Allows users to export the release issues by Status