Add the revision to SDL_version.h

include/SDL3/SDL_version.h

@@ -30,6 +30,7 @@
 #define SDL_version_h_
 
 #include <SDL3/SDL_stdinc.h>
+#include <SDL3/SDL_revision.h>
 
 #include <SDL3/SDL_begin_code.h>
 /* Set up for C function definitions, even when using C++ */