Add JNI RSA-PSS sign/verify and RSA sign check PK callbacks

[cconlon]

This PR adds RSA-PSS sign and sign check (verify) PK callback support to the JNI layer, enabling applications to register custom RSA-PSS callbacks for TLS 1.3 handshakes.

• Adds RSA sign check PK callback support (verifies a signature immediately after creation), complementing the existing RSA sign and verify callbacks
• Adds new WolfSSLRsaPssSignCallback and WolfSSLRsaPssVerifyCallback Java interfaces
• Adds doPssSign() and doPssVerify() native wrappers in WolfCryptRSA for use in example/test callback implementations
• Adds handshake-based JUnit tests that exercise RSA and RSA-PSS PK callbacks during TLS 1.2 and TLS 1.3 connections

ZD 21200

[Copilot]

Pull request overview

Adds RSA sign-check and RSA-PSS signing/verification PK callback support across the Java/JNI boundary, plus handshake-driven tests to exercise these callbacks during TLS handshakes.

Changes:

• Introduces new Java callback interfaces for RSA-PSS sign and verify (sign-check).
• Extends WolfSSLContext and JNI bindings to register RSA sign-check and RSA-PSS PK callbacks.
• Adds WolfCryptRSA native wrappers for RSA-PSS sign/verify and new socket-based handshake tests.

Reviewed changes

Copilot reviewed 10 out of 10 changed files in this pull request and generated 5 comments.

Show a summary per file

File	Description
src/test/com/wolfssl/test/WolfSSLContextTest.java	Adds TLS 1.2/1.3 handshake tests that register RSA/RSA-PSS callbacks and assert invocation.
src/java/com/wolfssl/WolfSSLRsaPssVerifyCallback.java	New Java interface for RSA-PSS verification (used for sign-check callback registration).
src/java/com/wolfssl/WolfSSLRsaPssSignCallback.java	New Java interface for RSA-PSS signing callbacks.
src/java/com/wolfssl/WolfSSLContext.java	Adds internal callback dispatch + public setters and native hooks for RSA sign-check and RSA-PSS callbacks.
src/java/com/wolfssl/WolfCryptRSA.java	Adds native method declarations for RSA-PSS sign/verify wrappers.
scripts/infer.sh	Includes the new Java interface files in Infer’s javac invocation.
native/com_wolfssl_WolfSSLContext.h	Adds JNI declarations for RSA-PSS sign and RSA/RSA-PSS sign-check registration.
native/com_wolfssl_WolfSSLContext.c	Implements JNI registration and native-to-Java bridging for the new callbacks.
native/com_wolfssl_WolfCryptRSA.h	Adds JNI declarations for doPssSign/doPssVerify.
native/com_wolfssl_WolfCryptRSA.c	Implements RSA-PSS sign/verify wrappers using wolfCrypt APIs.

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[Copilot]

Pull request overview

Copilot reviewed 11 out of 11 changed files in this pull request and generated 4 comments.

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