dep/animia: add libutil method I changed the "linux" method to be "proc", because it isn't exactly Linux specific this commit also has some changes to the x11 stuff: instead of enumerating over only top-level windows, we iterate over ALL of them this is because many X11 apps actually use multiple windows for some reason, I still can't get it to work with VLC, but it picks up Firefox...

--- a/dep/animia/src/fd/xnu.cc	Sat Nov 18 01:12:02 2023 -0500
+++ b/dep/animia/src/fd/xnu.cc	Sun Nov 19 04:21:56 2023 -0500
@@ -20,8 +20,6 @@
 #include <sys/types.h>
 #include <sys/user.h>
 
-#include <iostream>
-
 namespace animia::internal::xnu {
 
 bool XnuFdTools::EnumerateOpenProcesses(process_proc_t process_proc) {