RFR: 7096: Bring back Object statistics table for heap.

[Marcus Hirt]

On Tue, 23 Aug 2022 07:56:19 GMT, Virag Purnam <duke at openjdk.org> wrote:

> In the memory page, below mentioned columns have been added as per the request from customer. These columns are not visible by default. Users can select these from "Visible Columns" option. Customer wants these columns for the "Object Statistics". 
> 
> - Avg Live Count
> - Avg Live Size
> - Live Instances Increase
> - Percentage of Heap
> 
> ![ObjectStatistics](https://user-images.githubusercontent.com/97600378/186091512-b434560a-96b1-4e62-80b8-029ae95169bf.jpg)

Changes requested by hirt (Lead).

core/org.openjdk.jmc.flightrecorder.rules.jdk/src/main/java/org/openjdk/jmc/flightrecorder/rules/jdk/dataproviders/ObjectStatisticsDataProvider.java line 105:

> 103: 
> 104: 	/**
> 105: 	 * @return an aggregator for the increase in the live size set between the first and last

Perhaps "live set size"?

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PR: https://git.openjdk.org/jmc/pull/420