RFR: 7268: Show icons for modifiers in the method profiling page [v3]

[Marcus Hirt]

On Fri, 11 Jun 2021 10:16:16 GMT, Marcus Hirt <hirt at openjdk.org> wrote:

>> I'll check in the new icons in the jmc-graphics repo.
>
> Marcus Hirt has updated the pull request incrementally with one additional commit since the last revision:
> 
>   High resoluion page icon

<img width="759" alt="image" src="https://user-images.githubusercontent.com/16906077/121692511-716a6480-cac8-11eb-89ff-07e237d63d3c.png">

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PR: https://git.openjdk.java.net/jmc/pull/264