Add cert/CRL capabilities: skid, akid, dist point, netscape

[padelsbach]

This is a follow up to PR 315 which must be merged first. Must also merge related PRs on WolfSSL 9631 and 9713

[Copilot]

Pull request overview

This PR adds support for certificate and CRL generation extensions including Subject Key Identifier (SKID), Authority Key Identifier (AKID), CRL Distribution Points, and Netscape Certificate Type. It introduces a new WolfSSLCRL class for CRL generation and adds extension setter methods to WolfSSLCertificate. The implementation depends on wolfSSL PRs 9631 and 9713, which must be merged first.

Changes:

• Added WolfSSLCRL class with comprehensive CRL generation API (new/sign/add revoked certificates/write to file)
• Added certificate extension setter methods for SKID, AKID, CRL Distribution Points, and Netscape Cert Type to WolfSSLCertificate
• Added NIDs and constants for new extension types to WolfSSL
• Added comprehensive test coverage for CRL generation and certificate extension setters

Reviewed changes

Copilot reviewed 20 out of 20 changed files in this pull request and generated 7 comments.

Show a summary per file

File	Description
src/java/com/wolfssl/WolfSSL.java	Added NIDs for SKID, AKID, CRL dist points, Netscape cert type; added NS_CERT_TYPE constants; added CrlGenerationEnabled() method
src/java/com/wolfssl/WolfSSLCertificate.java	Added extension setters for SKID/AKID/CRL dist points/Netscape type with two sets of methods (older naming + newer naming)
src/java/com/wolfssl/WolfSSLCRL.java	New CRL generation class with methods to create, sign, and export CRLs
src/test/com/wolfssl/test/WolfSSLTestSuite.java	Added WolfSSLCRLTest to test suite
src/test/com/wolfssl/test/WolfSSLCertificateTest.java	Added testWolfSSLCertificateExtensionSetters test for new extension methods
src/test/com/wolfssl/test/WolfSSLCRLTest.java	New comprehensive test file with 15 test methods covering all CRL operations
native/com_wolfssl_WolfSSL.c/h	Implemented NID getters and CrlGenerationEnabled() native method
native/com_wolfssl_WolfSSLCertificate.c/h	Implemented native extension setters for first set of methods only
native/com_wolfssl_WolfSSLCRL.c/h	Complete native CRL generation implementation
java.sh	Added compilation for WolfSSLCRL.c/.o and updated linker command
build.xml	Added WolfSSLCRL to javah class list
platform/android_aosp/wolfssljni/Android.mk	Added WolfSSLCRL.c to source files
IDE/Android/app/src/main/cpp/CMakeLists.txt	Added WolfSSLCRL.c to CMake sources
IDE/WIN/wolfssljni.vcxproj*	Added WolfSSLCRL source files to Windows project
examples/certs/update-certs.sh	Added generation of test certificate with CRL distribution point
examples/certs/test/crl-dp-cert.pem	New test certificate containing CRL distribution point extension

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