RFR: 7268: Show icons for modifiers in the method profiling page [v7]

[Guru Hb]

On Fri, 11 Jun 2021 17:58:14 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:
> 
>   Typo

Marked as reviewed by ghb (Reviewer).

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