[OpenJDK 2D-Dev] RFR: 8227324: Upgrade to freetype 2.10.1

[Philip Race]

Bug: https://bugs.openjdk.java.net/browse/JDK-8227324
Webrev: http://cr.openjdk.java.net/~prr/8227324/

A patch update from 2.10.0 to 2.10.1.

Some refactoring and some bug fixes.

Builds fine with --use-freetype=bundled


-phil.