meson: reorder subdirs to have bin after modules

This is so that we can use vlc_plugins_targets_array in a future
commit in the bin meson.build file.

Author: ePirat

meson.build

@@ -1101,12 +1101,12 @@ subdir('src')
 # LibVLC
 subdir('lib')
 
-# VLC binaries
-subdir('bin')
-
 # VLC plugins
 subdir('modules')
 
+# VLC binaries
+subdir('bin')
+
 # Generate config.h
 configure_file(input: 'config.h.meson',
   output: 'config.h',