[15] RFR: 8209632: Develop new tests for EdDSA API

[sibabrata.sa...@oracle.com]

Hi Tony,

Please review the patch of new Tests developed for EdDSA,

JBS: https://bugs.openjdk.java.net/browse/JDK-8209632 
<https://bugs.openjdk.java.net/browse/JDK-8209632>
Webrev: http://cr.openjdk.java.net/~ssahoo/8209632/webrev.00/ 
<http://cr.openjdk.java.net/~ssahoo/8209632/webrev.00/>

Thanks,
Siba