RFR: 7514: Rule for FinalizationStatistics

[Marcus Hirt]

On Wed, 30 Nov 2022 13:24:50 GMT, Pierre-Yves Bigourdan <duke at openjdk.org> wrote:

> A new `jdk.FinalizerStatistics` JFR event was introduced in JDK 18. This pull requests adds a simple rule that makes use of it:
> ![Screenshot 2022-11-30 at 14 19 49](https://user-images.githubusercontent.com/10694593/204806915-0da90fe3-ccc0-430e-96f8-ebc529f8e7a1.png)

Marked as reviewed by hirt (Lead).

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PR: https://git.openjdk.org/jmc/pull/456