Skip data series with infinite values in returns volatility chart

Infinite values result in an IllegalArgumentException when SWTChart
is adjusting the range.

Issue: https://forum.portfolio-performance.info/t/fehlermeldung-illegal-range-lower-infinity-upper-0-10238103115053554/24485

name.abuchen.portfolio.ui/src/name/abuchen/portfolio/ui/views/ReturnsVolatilityChartView.java

@@ -287,6 +287,9 @@ private void setChartSeries()
             double risk = this.riskMetric.getRisk(index);
             double retrn = this.useIRR ? index.getPerformanceIRR() : index.getFinalAccumulatedPercentage();
 
+            if (Double.isInfinite(risk) || Double.isInfinite(retrn))
+                return;
+
             ILineSeries lineSeries = chart.addScatterSeries(series.getUUID(), new double[] { risk },
                             new double[] { retrn }, series.getLabel());