[gtkmm: 2/2] Merge branch 'numericsorter' into 'master'

[Andreas Persson <andreasp src gnome org>]

commit d4646b524ee58ebfb1f031e1233a375d5eaebf10
Merge: a9af2dc4 81acea92
Author: Andreas Persson <andreasp56 outlook com>
Date:   Mon Oct 5 17:21:30 2020 +0000

    Merge branch 'numericsorter' into 'master'
    
    Add Gtk::NumericSorter
    
    See merge request GNOME/gtkmm!52

 .gitignore                                |   2 +
 gtk/gtkmm.h                               |   1 +
 gtk/gtkmm/meson.build                     |   1 +
 gtk/src/filelist.am                       |   1 +
 gtk/src/gtk_signals.defs                  |  21 ++++
 gtk/src/numericsorter.ccg                 |  17 ++++
 gtk/src/numericsorter.hg                  | 157 ++++++++++++++++++++++++++++++
 tools/extra_defs_gen/generate_defs_gtk.cc |   1 +
 8 files changed, 201 insertions(+)
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