gtimelog: Add GTK3 to dependencies

[goetzk (Karl Goetz)]

When trying to run gtimelog I encounter the following error:

Karls-Air:~ kgoetz$ gtimelog 
/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/gtimelog/main.py:59: PyGIWarning: Gdk was imported without specifying a version first. Use gi.require_version('Gdk', '2.0') before import to ensure that the right version gets loaded.
  from gi.repository import Gdk as gdk
/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/gi/overrides/Gtk.py:48: RuntimeWarning: You have imported the Gtk 2.0 module.  Because Gtk 2.0 was not designed for use with introspection some of the interfaces and API will fail.  As such this is not supported by the pygobject development team and we encourage you to port your app to Gtk 3 or greater. PyGTK is the recomended python module to use with Gtk 2.0
  warnings.warn(warn_msg, RuntimeWarning)
/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/gtimelog/main.py:60: PyGIWarning: Gtk was imported without specifying a version first. Use gi.require_version('Gtk', '2.0') before import to ensure that the right version gets loaded.
  from gi.repository import Gtk as gtk
Traceback (most recent call last):
  File "/opt/local/bin/gtimelog", line 11, in <module>
    load_entry_point('gtimelog==0.9.2', 'gui_scripts', 'gtimelog')()
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/gtimelog/main.py", line 1383, in main
    main_window = MainWindow(timelog, settings, tasks)
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/gtimelog/main.py", line 419, in __init__
    self._init_ui()
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/gtimelog/main.py", line 424, in _init_ui
    builder.add_from_file(ui_file)
GLib.Error: gtk-builder-error-quark: /opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/gtimelog/gtimelog.ui: required gtk+ version 3.0, current version is 2.24 (7)

Installing GTK3 fixes it:

Karls-Air:~ kgoetz$ sudo port install gtk3
Password:
Warning: xcodebuild exists but failed to execute
Warning: Xcode does not appear to be installed; most ports will likely fail to build.
--->  Computing dependencies for gtk3
The following dependencies will be installed: 
 at-spi2-atk
 at-spi2-core
 libepoxy
 mesa
 xorg-dri2proto
 xorg-glproto
 xorg-libXtst
 xorg-libXxf86vm
 xorg-recordproto
 xorg-xf86vidmodeproto
Continue? [Y/n]: y
[...]
--->  Cleaning gtk3
--->  Updating database of binaries
--->  Scanning binaries for linking errors               
--->  No broken files found.                             
Karls-Air:~ kgoetz$ gtimelog
/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/gtimelog/main.py:59: PyGIWarning: Gdk was imported without specifying a version first. Use gi.require_version('Gdk', '3.0') before import to ensure that the right version gets loaded.
  from gi.repository import Gdk as gdk
/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/gtimelog/main.py:60: PyGIWarning: Gtk was imported without specifying a version first. Use gi.require_version('Gtk', '3.0') before import to ensure that the right version gets loaded.
  from gi.repository import Gtk as gtk

[reneeotten (Renee Otten)]

In bf61972e88b1c58602866d0e78c9e1c3eb9f0a8f/macports-ports (master):

gtimelog: update to 0.11.3, use Python 3.7

Closes: #56032
Closes: #56031