RFR: JDK-8190464: OpenJDK on macosx needs to bundle freetype

[Erik Joelsson]

Since X11 and freetype aren't available on Macosx by default, and we 
(Oracle) are now shipping OpenJDK builds for Macosx, we need to start 
bundling freetype on Macosx, just like we do on Windows. This patch adds 
a new freetype bundle as a dependency for Macosx builds. It also updates 
the dependencies for Windows builds to get a new license file.

Previously we only included the license file in RI builds (openjdk only 
builds with BCL source license) but we have now decided to include it 
with GPL licensed builds as well. The patch removes the special handling 
of the license for RI builds. It also makes configure look for the 
license file in the root of the --with-freetype argument so that Jib 
only has to provide the one argument. Finally, the 
--with-freetype-license logic was outside of the "needs freetype" block 
so I moved inside that block.

Bug: https://bugs.openjdk.java.net/browse/JDK-8190464

Webrev: http://cr.openjdk.java.net/~erikj/8190464/webrev.01/

/Erik