Adding the HistogramValue object

The HistogramValue object is used by the APIClient to returns a
histogram object from the API.

It contains the values that are defined in utils.json

Signed-off-by: Amnon Heiman <amnon@cloudius-systems.com>

src/main/java/com/yammer/metrics/core/HistogramValues.java

@@ -0,0 +1,11 @@
+package com.yammer.metrics.core;
+
+public class HistogramValues {
+    public long count;
+    public long min;
+    public long max;
+    public long sum;
+    public double variance;
+    public double svariance;
+    public long sample[];
+}