Issue #236: Future - Add interactive Draw/Detail/Layout GUI (dismine/valentina)

New issue 236: Future - Add interactive Draw/Detail/Layout GUI https://bitbucket.org/valentinateam/valentina/issue/236/future-add-interactive-draw-detail-layout

Susan Spencer:

Allow users to visually edit (drag and drop) lines, curves, and other objects in draw, detail, and layout.

These features are a significant change to Valentina’ UI and may require some architectural and datastructure changes.