RFR: 8179503: Java should support GET OCSP calls

[Jamil Nimeh]

This enhancement allows the underlying OCSP subsystem to submit OCSP requests using HTTP GET when the request is less than or equal to 255 bytes as documented in RFC 6960 and clarified in RFC 5019.

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Commit messages:
 - Merge
 - 8179503: Java should support GET OCSP calls

Changes: https://git.openjdk.java.net/jdk/pull/1760/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=1760&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8179503
  Stats: 358 lines in 3 files changed: 301 ins; 23 del; 34 mod
  Patch: https://git.openjdk.java.net/jdk/pull/1760.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/1760/head:pull/1760

PR: https://git.openjdk.java.net/jdk/pull/1760