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/Rendering/Debug.h

@@ -9,6 +9,7 @@ typedef enum
     DEBUG_NONE = 0,
     DEBUG_BVH = 1,
     DEBUG_SOBOL = 2,
+    DEBUG_UV = 3,
 } debug_flag_t;
 
 static const vec4s DEBUG_COLOR_BVH = {0.0f, 1.0f, 0.0f, 0.005f}; // Green