This is done by adding a `Unsafe_` prefix to `(const) char *` (C# `byte*`) functions.
I am using `string?` instead of `ReadOnlyMemory<byte>?` because the returned pointer can
get invalidated and cause memory-safety issues.
The returned pointer is automatically freed if the return type is `char *`.
I've checked that the documentation for all functions (except in SDL_stdinc.h)
requires calling `SDL_free()` on the pointer.
The bindings don't yet compile. There are errors in SDL_pixels.g.cs, SDL_stdinc.g.cs and SDL_thread.g.cs,
a bunch of warnings about "Function like macro definition records are not supported",
and a few "Info: Potential missing remapping".
Built on SDL commit:
6ad390fc50
Susko3