added missing NUmberFormatterFactory

java/com.sap.sailing.gwt.ui/src/main/java/com/sap/sailing/gwt/ui/client/NumberFormatterFactory.java

@@ -0,0 +1,17 @@
+package com.sap.sailing.gwt.ui.client;
+
+import com.google.gwt.i18n.client.NumberFormat;
+
+public class NumberFormatterFactory {
+    public static NumberFormat getDecimalFormat(int decimals) {
+        StringBuilder patternBuilder = new StringBuilder("0");
+        if (decimals > 0) {
+            patternBuilder.append('.');
+        }
+        for (int i = 0; i < decimals; i++) {
+            patternBuilder.append('0');
+        }
+        return NumberFormat.getFormat(patternBuilder.toString());
+    }
+    
+}