HBASE-22975 Add read and write QPS metrics at server level and table level

Author: ZhaoBQ

hbase-hadoop2-compat/src/main/java/org/apache/hadoop/hbase/regionserver/MetricsTableQueryPerSecondImpl.java

@@ -44,7 +44,8 @@ private static class TableMeters {
     final Meter tableWriteQueryPerSecondMeter;
 
     TableMeters(MetricRegistry metricRegistry, TableName tableName) {
-      this.tableReadQueryPerSecondMeter = metricRegistry.meter(qualifyMetricsName(tableName, TABLE_READ_QUERY_PER_SECOND));
+      this.tableReadQueryPerSecondMeter = metricRegistry.meter(qualifyMetricsName(tableName,
+        TABLE_READ_QUERY_PER_SECOND));
       this.tableWriteQueryPerSecondMeter =
         metricRegistry.meter(qualifyMetricsName(tableName, TABLE_WRITE_QUERY_PER_SECOND));
     }