Implemented apple.awt.windowTitleVisible property to control window title visibility
------------- Commit messages: - 8265005: Introduce the new client property for mac: apple.awt.windowTitleVisible Changes: https://git.openjdk.java.net/jdk/pull/3425/files Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=3425&range=00 Issue: https://bugs.openjdk.java.net/browse/JDK-8265005 Stats: 160 lines in 3 files changed: 158 ins; 0 del; 2 mod Patch: https://git.openjdk.java.net/jdk/pull/3425.diff Fetch: git fetch https://git.openjdk.java.net/jdk pull/3425/head:pull/3425 PR: https://git.openjdk.java.net/jdk/pull/3425
