Add Boolean mesh materialization and a WASM binding temporary patch

[vijaiaeroastro]

Adds BooleanObject::MergeToMeshObject() to materialize an evaluated Boolean CSG shape as a normal mesh object in the same Model.

This lets clients retrieve and use the tessellated result directly, without exporting it through an STL writer first.

Changes

• Add MergeToMeshObject() to the Boolean public API.
• Generate bindings for all supported language targets.
• Add C++ coverage for materializing and inspecting the resulting mesh.

Unrelated Included Fixes

• Add the missing slice-stack vertex binding required by the 3MF Viewer.
• Apply the current WASM generated-binding patch for struct-return handling.

[codecov]

Codecov Report

❌ Patch coverage is 67.56757% with 12 lines in your changes missing coverage. Please review.
✅ Project coverage is 60.05%. Comparing base (82c524d) to head (659fbbe).

Files with missing lines	Patch %	Lines
Autogenerated/Source/lib3mf_interfacewrapper.cpp	65.51%	10 Missing ⚠️
Autogenerated/Bindings/Cpp/lib3mf_implicit.hpp	75.00%	2 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##           develop     #466      +/-   ##
===========================================
+ Coverage    60.04%   60.05%   +0.01%     
===========================================
  Files           67       67              
  Lines        25269    25306      +37     
===========================================
+ Hits         15173    15198      +25     
- Misses       10096    10108      +12     

☔ View full report in Codecov by Harness.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.
• 📦 JS Bundle Analysis: Save yourself from yourself by tracking and limiting bundle sizes in JS merges.

[3dJan]

Well done.