SPIGOT-2737: Implement Statistic.PICKUP

src/main/java/org/bukkit/craftbukkit/CraftStatistic.java

@@ -119,6 +119,9 @@ public class CraftStatistic {
             if (stat == Statistic.BREAK_ITEM) {
                 return StatisticList.c(CraftMagicNumbers.getItem(material)); // PAIL: getBreakItemStatistic
             }
+            if (stat == Statistic.PICKUP) {
+                return StatisticList.d(CraftMagicNumbers.getItem(material)); // PAIL: getPickupStatistic
+            }
             if (stat == Statistic.DROP) {
                 return StatisticList.e(CraftMagicNumbers.getItem(material)); // PAIL: getDropItemStatistic
             }