client/server-only builds + relocate examples

[bigbrett]

• Adds client/server enable macros allowiing for client-only or server-only builds
• Adds a client-only TCP test build option that builds unit tests to run against a remote TCP server (to provide coverage for the above feature and ensure the client-only stack isn't dependent on any server-side functionality)
• Adds GitHub action testing the above against the example server

[Copilot]

Pull Request Overview

This PR introduces build macros to support client‐only and server‐only builds and relocates example files. Key changes include:

• Adding client/server enable macros and a client‐only TCP test build option.
• Integrating GitHub Actions workflows for testing the updated configuration.

Reviewed Changes

Copilot reviewed 75 out of 75 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
examples/demo/client/wh_demo_client_keystore.h	New client keystore header with API declarations.
examples/demo/client/wh_demo_client_keystore.c	Implements keystore functions including caching, committing, and eviction logic.
examples/demo/client/wh_demo_client_crypto.h	Declares crypto demo functions supporting various algorithms.
examples/demo/client/wh_demo_client_counter.h & .c	Adds a minimal counter demo.
examples/demo/client/wh_demo_client_all.h & .c	Aggregates all client demo functions.
examples/demo/certs/*	Adds demo certificate and key files for RSA, ECC, and Curve25519.
examples/demo/certs/genKeys.sh	Provides a script for generating keys with a TODO regarding Curve25519 keys.
examples/README.md	Updates documentation for example usage and build instructions.
benchmark/config/wolfhsm_cfg.h	Adds macros to enable both client and server functionality.
.github/workflows/*	Introduces and updates GitHub Actions workflows for various build configurations.

Comments suppressed due to low confidence (2)

examples/README.md:3

• Typo found: 'aformentioned' should be corrected to 'aforementioned'.

This directory contains examples code demonstrating how to use various wolfHSM features. The examples provided are split between port-agnostic demo code, and port-specific server/client applications that use the aformentioned demo code.

examples/demo/client/wh_demo_client_keystore.c:212

• Consider using a defined error constant instead of returning -1 directly, to maintain consistency with other wolfHSM error codes.

return -1;

[billphipps]

Loving the explicit server/client build options! Awesome that we can get all the examples in here now and simplify repo management!

Looks really good. I had a few comments and questions but I think it can go in without any changes if you don't agree with my comments

[bigbrett]

Fixed all changes, CI will fail until #123 merges