New: dragbasicline

Signed-off-by: Miroslav Safr <Miroslav.Safr@gmail.com>
Int: refactoring 1/2

Signed-off-by: Miroslav Safr <Miroslav.Safr@gmail.com>
New: ut_dragwidget load/save project

Signed-off-by: Miroslav Safr <Miroslav.Safr@gmail.com>