make GroupMonetarySummaryStatistics public

Author: otaviojava

src/main/java/org/javamoney/moneta/function/GroupMonetarySummaryStatistics.java

@@ -25,7 +25,7 @@
 /**
  * Internal class implementing grouped statistic functionality.
  */
-class GroupMonetarySummaryStatistics {
+public class GroupMonetarySummaryStatistics {
 
     private Map<CurrencyUnit, MonetarySummaryStatistics> groupSummary = new HashMap<>();
 

src/main/java/org/javamoney/moneta/function/MonetarySummaryStatistics.java

@@ -30,7 +30,6 @@ public class MonetarySummaryStatistics {
 
     /**
      * Creates a new instance, targeting the given {@link javax.money.CurrencyUnit}.
-     *
      * @param currencyUnit the target currency, not null.
      */
     MonetarySummaryStatistics(CurrencyUnit currencyUnit) {