RFR: 8245527: LDAP Channel Binding support for Java GSS/Kerberos

[Alexey Bakhtin]

Hi,

Plaese review JDK-8245527 fix which implements LDAP Channel Binding support for Java GSS/Kerberos.
Initial review is available at core-devs: https://mail.openjdk.java.net/pipermail/core-libs-dev/2020-August/068197.html
This version removes "tls-unique" CB type from the list of possible channel binding types. The only supported type is
"tls-server-end-point"

CSR is also updated : https://bugs.openjdk.java.net/browse/JDK-8247311

Thank you
Alexey

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Commit messages:
 - 8245527: LDAP Channel Binding support for Java GSS/Kerberos

Changes: https://git.openjdk.java.net/jdk/pull/278/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=278&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8245527
  Stats: 536 lines in 10 files changed: 524 ins; 0 del; 12 mod
  Patch: https://git.openjdk.java.net/jdk/pull/278.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/278/head:pull/278

PR: https://git.openjdk.java.net/jdk/pull/278