Simplified SDL_SetProperty() and added SDL_SetPropertyWithCleanup()

Most of the time people won't need to set a cleanup callback, so we can simplify the more commonly used API.

src/dynapi/SDL_dynapi.sym

@@ -921,6 +921,7 @@ SDL3_0.0.0 {
     SDL_RWvprintf;
     SDL_AllocateEventMemory;
     SDL_GetDisplayProperties;
+    SDL_SetPropertyWithCleanup;
     # extra symbols go here (don't modify this line)
   local: *;
 };