Log Message:
Update glib2 to 2.52.3

Highlights include:
* OS X implementations of GContentType and GAppInfo have been added
* Memory leak fixes
* Minimal support for UUIDs has been added
* A new file attribute, G_FILE_ATTRIBUTE_RECENT_MODIFIED has been added
  to improve sorting of recent files
* glib-compile-resources grew a --generate-phony-targets flag
* GLib now installs a valgrind suppressions file for GLib and GIO
* glib-genmarshal and glib-mkenums have gained --output options
  for better build system integration
* New API: g_utf8_make_valid

+ Many bug fixes and translation updates. For a full list see:
https://git.gnome.org/browse/glib/tree/NEWS?h=2.52.3