RFR: 8285686: Upgrade to FreeType 2.12.0

[Phil Race]

This upgrades the JDK from using freetype 2.10.4 to 2.12.0
Automated tests pass, manual testing looks fine.
--with-freetype=bundled was used to make sure it is OK on Linux builds.

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Commit messages:
 - 8285686

Changes: https://git.openjdk.java.net/jdk/pull/8456/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=8456&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8285686
  Stats: 10933 lines in 293 files changed: 6807 ins; 2146 del; 1980 mod
  Patch: https://git.openjdk.java.net/jdk/pull/8456.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/8456/head:pull/8456

PR: https://git.openjdk.java.net/jdk/pull/8456