Changed function signatures to remove const qualifiers

Changed several function signatures across multiple files to remove the `const` qualifier from parameters of type `vec3s` for improved flexibility.
Changed `material_collection_create` to `material_collection_init` for better initialization handling.
Changed `scene_create` to `scene_init` to return a boolean indicating success or failure.
Changed `render_target_create` to `render_target_init` for consistent initialization practices.
Changed `window_create` to remove `const` from its parameters for consistency.
Changed `evaluate_bsdf_directional` and `evaluate_bsdf_const_sky` to remove `const` from their parameters.
Changed `sample_bsdf_simple_lit` and `sample_bsdf_pdf_simple_lit` to remove `const` from the `normal` parameter.
Changed `scene_render` to take a pointer to `render_target_t` instead of returning it directly.
Updated `main.c` to reflect new initialization functions for better memory management.

source/Algorithm/PathTracing.c

@@ -6,7 +6,7 @@
 
 // TODO: Implement a faster methods like BVH, KD-Tree or uniform grid acceleration
 // TODO: Split the diffuse and specular into different Monte Carlo, so we can decide the sample count for each one
-vec3s path_trace(const scene_t* scene, const ray_t ray, const uint32_t sample_index, const int max_depth)
+vec3s path_trace(const scene_t* scene,  ray_t ray,  uint32_t sample_index,  int max_depth)
 {
     const triangle_collection_t* triangles = &scene->triangles;
     const material_collection_t* materials = &scene->materials;