Visual Studio Improvements, Move to IDE, Introduce wolfBootTestLib

[gojimmypi]

Adds Visual Studio equivalent of test-lib, updates essential source code to address Microsoft-specific issues.

Introduces new test-visual-studio.yml workflow test.

Moves existing Visual Studio files to /IDE/Visual Studio

This is related to https://github.com/wolfSSL/wolfBoot/issues/614 , allowing more comprehensive testing from different environments.

Other changes coming, see my dev branch

Workflow tested in dev: https://github.com/gojimmypi/wolfBoot/actions/runs/18978948256

Zendesk

See 20775

Edit:

Sample run upstream: https://github.com/wolfSSL/wolfBoot/actions/runs/18980092821/job/54210176378?pr=623

The current build-windows now fails with this PR, as the existing solution file with the new test-lib.exe needs the other projects to build and run.

I propose the build-windows be removed in favor of the test-visual-studio.yml workflow test in this PR.

[gojimmypi]

Inadvertently closed. Ready for review. Moved to /IDE/Visual Studio.