RFR CSR: JDK-8254709 (Support for EdDSA signature scheme in JSSE)

[Jamil Nimeh]

Hi Folks,

I just put out the draft CSR for the RFE that adds EdDSA support in 
JSSE.  If anyone has some spare cycles to review this I'd appreciate it.

https://bugs.openjdk.java.net/browse/JDK-8254709

Thanks,

--Jamil