add stb_voxel_render to standard compilation tests

tests/test_c_compilation.c

@@ -7,6 +7,7 @@
 #define STB_HERRINGBONE_WANG_TILE_IMEPLEMENTATIOn
 #define STB_IMAGE_RESIZE_IMPLEMENTATION
 #define STB_RECT_PACK_IMPLEMENTATION
+#define STB_VOXEL_RENDER_IMPLEMENTATION
 
 #include "stb_herringbone_wang_tile.h"
 #include "stb_image.h"
@@ -18,6 +19,9 @@
 #include "stb_image_resize.h"
 #include "stb_rect_pack.h"
 
+#define STBVOX_CONFIG_MODE 1
+#include "stb_voxel_render.h"
+
 #define STBTE_DRAW_RECT(x0,y0,x1,y1,color)      0
 #define STBTE_DRAW_TILE(x,y,id,highlight,data)  0
 #define STB_TILEMAP_EDITOR_IMPLEMENTATION