RFR[12] JDK-8210632: Add key exchange algorithm to javax/net/ssl/TLSCommon/CipherSuite.java

[sha.jiang at oracle.com]

Hi,
It would be better that javax/net/ssl/TLSCommon/CipherSuite.java has an 
attribute on key exchange algorithm.
This attribute could be used on selecting appropriate certificates by 
some tests.

Issue: https://bugs.openjdk.java.net/browse/JDK-8210632
Webrev: http://cr.openjdk.java.net/~jjiang/8210632/webrev.00/

Best regards,
John Jiang