[jdk8u-dev] RFR: 6722928: Provide a default native GSS-API library on Windows

[Alexey Bakhtin]

Please review the backport of sspi bridge to JDK8

The backport is based on the JDK11 version and is almost clean.
The copyright years are updated manually:
- NativeFunc.h already has a newer copyright year
- SunNativeProvider.java updated manually
The main difference is a build script for sspi_bridge. It is located in SecurityLibraries.gmk

No regressions on the sun/security/krb5 tests (Windows and Linux platforms)

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Commit messages:
 - Backport 475996adc2aaa7af920f2e9711d0ace2ddd2430e

Changes: https://git.openjdk.org/jdk8u-dev/pull/340/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk8u-dev&pr=340&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-6722928
  Stats: 1720 lines in 8 files changed: 1612 ins; 14 del; 94 mod
  Patch: https://git.openjdk.org/jdk8u-dev/pull/340.diff
  Fetch: git fetch https://git.openjdk.org/jdk8u-dev.git pull/340/head:pull/340

PR: https://git.openjdk.org/jdk8u-dev/pull/340