ADDED: Config flag: SUPPORT_STANDARD_FILEIO

This new flag allows omitting stdio.h library in case of a custom implementation is used.

src/textures.c

@@ -65,7 +65,6 @@
 #endif
 
 #include <stdlib.h>             // Required for: malloc(), free()
-#include <stdio.h>              // Required for: FILE, fopen(), fclose(), fread()
 #include <string.h>             // Required for: strlen() [Used in ImageTextEx()]
 #include <math.h>               // Required for: fabsf()