RFR: 6583: Add filter and search table actions to EventBrowser page

[Jie Kang]

On Wed, 18 Dec 2019 16:49:52 GMT, Jessye Coleman-Shapiro <github.com+29706926+jessyec-s at openjdk.org> wrote:

> This patch addresses [JMC-6583](https://bugs.openjdk.java.net/browse/JMC-6583) : Should be possible to filter and search in the Event Browser.
> 
> I have added table search and filter actions in the Event Browser.

When searching the events table, the last element "Showing X of Y" seems to be broken.

For example:
![event-browser-search](https://user-images.githubusercontent.com/5430520/71107560-4df28200-218f-11ea-92d5-0feef5a0d0f8.png)

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PR: https://git.openjdk.java.net/jmc/pull/22