Update project files and enhance rendering system

Added:
- Updated `.gitignore` to ignore the `[Bb]uild/` directory.
- Additional tasks added to the roadmap in `README.md` for light unit standardization and GPU backend support.

Changed:
- Removed line in `settings.json` that disabled error squiggles for C/C++ code.
- Modified `Triangle.h` to include `material_id` in `triangle_t` and reorganized properties.
- Reordered parameters in `triangle_collection_init` for clarity.
- Updated `shading_context_t` in `Material.h` and added size parameter to `material_create`.
- Streamlined initialization in `scene_init` and updated `scene_free` for proper resource management.
- Updated `window_create` in `Window.h` to accept a `render_job_t` parameter.
- Introduced `renderer_start` in `Renderer.c` to handle rendering jobs and optimized pixel rendering logic.

header/Material/SimpleLit.h

@@ -17,7 +17,7 @@ float sample_bsdf_pdf_simple_lit(const void* data, vec3s normal, vec3s wo, vec3s
 
 inline material_entity_t material_create_simple_lit(simple_lit_data_t* lit_data, material_collection_t* collection)
 {
-    return material_create(sample_bsdf_simple_lit, sample_bsdf_pdf_simple_lit, evaluate_bsdf_simple_lit, lit_data, collection);
+    return material_create(sample_bsdf_simple_lit, sample_bsdf_pdf_simple_lit, evaluate_bsdf_simple_lit, lit_data, sizeof(simple_lit_data_t), collection);
 }
 
 #endif // SIMPLE_LIT_H