RFR: JDK-8264838: IGV: enhance graph export functionality [v2]

[Nils Eliasson]

On Fri, 26 Nov 2021 09:43:32 GMT, Nils Eliasson <neliasso at openjdk.org> wrote:

>> Hi,
>> 
>> This patch adds SVG and searchable PDF export functionality to IGV. 
>> 
>> It's originally contributed by rcastanedalo at openjdk.java.net.
>> I have updated the patch with new library versions, rebased and tested it.
>> 
>> Please review,
>> Nils Eliasson
>
> Nils Eliasson has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Clean up

I updated this PR with a change based on feedback by @chhagedorn from the previous (withdrawn) PR.

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PR: https://git.openjdk.java.net/jdk/pull/6564