* Issue 0022845: EDF GEOM: [HYDRO] Hiding the coordinates system part of the dialog box in the polyline editor
- Disabled display of coordinate system combo box
* Issue 0022843: EDF GEOM: [HYDRO] Polyline using a former polyline
- Changed algorithm of polyline and spline construction
* Issue 0022846: EDF GEOM: [HYDRO] Creation of a polyline: add intermediate points and remove points
- Added possibility to add/remove/modify new or intermediate points, select and modify them
- Added possibility to drag and drop points in a view
- Set violet color for preview in temporary Z layer
- Changed behavior of selected object
