[OpenJDK 2D-Dev] RFR: 8055463: Needs public API allowing full access to font collections in Font.createFont()

[Phil Race]

https://bugs.openjdk.java.net/browse/JDK-8055463
http://cr.openjdk.java.net/~prr/8055463/

Proposal is to add two new methods in the Font class paralleling the 
existing ones
that return only a single font.

Font[] createFont(File)
Font[] createFont(InputStream)

I tried to make the single & multiple code be shared as much as possible
to avoid duplication and I eliminated code in the OSX sub-class which
seemed to be a pointless copy of the superclass.

The test checks the various assertions I intend by probing for platform 
fonts.

-phil.