Set C standard to C11 and add new assets

Changed CMakeLists.txt to set the C standard to C11.
Added multiple binary image files for new visual assets.
Added several new image files to enhance rendering capabilities.
Changed stb_image.h to improve support for various image formats.
Changed ray tracing engine to enhance ray creation and intersection.
Changed triangle structure to use a vertex array for better attribute handling.
Changed scene initialization to accommodate new texture management.

header/Lighting/SkyLight.h

@@ -2,6 +2,7 @@
 #define SKY_LIGHT_H
 
 #include "Light.h"
+#include <string.h>
 
 typedef struct
 {
@@ -13,10 +14,14 @@ vec3s evaluate_bsdf_const_sky(const void* data, const light_shading_context_t* c
 
 inline sky_light_t sky_create_constant_sky(const constant_sky_data_t* data)
 {
-    return (sky_light_t){
+    sky_light_t light = {
         .evaluate_bsdf_sky = evaluate_bsdf_const_sky,
-        .data = data,
+        .type = SKY_TYPE_CONSTANT,
+        .data_size = sizeof(constant_sky_data_t),
     };
+
+    memcpy(light.data, data, sizeof(constant_sky_data_t));
+    return light;
 }
 
 #endif // SKY_LIGHT_H