[OpenJDK 2D-Dev] RFR 8149028: [TEST] add test for TIFFDirectory

[Alexander Stepanov]

Hello,

Could you please review the following fix
http://cr.openjdk.java.net/~avstepan/8149028/webrev.00/
for
https://bugs.openjdk.java.net/browse/JDK-8149028

Just a single test added.

Thanks,
Alexander