fix: Projection SetPlacement calls SetCoefficients

One SetPlacement overload doesn't call SetCoefficients, witch causes the Projection to not update.

CADability/Projection.cs

@@ -706,6 +706,7 @@ public void SetPlacement(double factor, double dx, double dy)
             placementFactor = factor;
             placementX = dx;
             placementY = dy;
+            SetCoefficients();
         }
         /// <summary>
         /// Liefert die Werte für die Platzierung. Achtung: die Y-Werte müssen mit dem negativen