[jdk11u-dev] RFR: 8256372: [macos] Unexpected symbol was displayed on JTextField with Monospaced font

[Martin Doerr]

Backport of JDK-8256372. Doesn't apply cleanly. Resolution:
- Removal of hb_coretext files and adaptation of Awt2dLibraries.gmk had to be done manually.
- Logging code in CFont.java needed a replacement for `logInfo` which is not available in 11u.

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Commit messages:
 - Backport 005d8a7fca8b4d9519d2bde0a7cdbbece1cd3981

Changes: https://git.openjdk.java.net/jdk11u-dev/pull/317/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk11u-dev&pr=317&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8256372
  Stats: 1403 lines in 9 files changed: 65 ins; 1330 del; 8 mod
  Patch: https://git.openjdk.java.net/jdk11u-dev/pull/317.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk11u-dev pull/317/head:pull/317

PR: https://git.openjdk.java.net/jdk11u-dev/pull/317