`SDL3_image` patching missing `IMG.c` file

I was using `sdl3_image` from wrapdb and I kept getting an error. It stated that I had an undefined reference to the function `IMG_LoadTexture`. After a few hours of investigation, I discovered that the issue was from the meson patch. The `sdl3_image` patch has a `meson.build` file in the `src` directory to list all of the source files, but it was missing `IMG.c`. I don't not know where to contribute to the patches for wrapdb, but I hope that this will get there. Thank you reading this. This took me too long to figure out.

Inspect the sdl3_image patch's src/meson.build file, where the source files are listed, and compare it with the missing IMG.c file mentioned in the issue. Verify that the patch includes IMG.c and that a build using the wrap provides IMG_LoadTexture without an undefined reference.

Written by the indexing model from the issue text.