RFR: JDK-8301998: Update HarfBuzz to 7.0.1 [v2]

[Justin King]

On Thu, 9 Mar 2023 06:12:26 GMT, Harshitha Onkar <honkar at openjdk.org> wrote:

>> HarfBuzz library updated from v4.4.1 to v7.0.1
>> 
>> - harfbuzz.md file updated
>> - Added -DHB_NO_VISIBILITY to HARFBUZZ_CFLAGS in Awt2DLibraries.gmk to avoid build issues on linux and macos targets.
>> - GPOS.hh moved to Layout to Layout/GPOS to match upstream changes.
>> - hb-ot-color-* files moved to OT/Color to match upstream changes.
>> - 41 newly added, 8 deleted and 224 modified files (src + harfbuzz.md).
>
> Harshitha Onkar has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Updating.txt changes

FYI HarfBuzz most recent is 7.1.0 as of last week. Might make sense to just bite the bullet as it were and to 7.1.0 instead of 7.0.1.

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PR: https://git.openjdk.org/jdk/pull/12913