Add a event Spy for GtkFileChooser recent files
GtkFileChooser/GtkRecentManager follows https://www.freedesktop.org/wiki/Specifications/desktop-bookmark-spec/ specification to store its recently accessed files.
The history is stored in $HOME/.local/share/recently-used.xbel
Adds an event spy for the xml file used by gtk following the example of the KRecentDocument EventSpy.
It allows to populate recently accessed files from apps using Gtk, including inkscape, gimp...
killall -9 kactivitymanage
run your localy built version of kactivitymanagerd, for instance:
Run a gtk app and open a file
The file access can be seen in kickoff/kicker history
Reviewers: Frameworks, ivan
Reviewed By: ivan
Subscribers: bruns, ngraham, broulik, plasma-devel
Differential Revision: https://phabricator.kde.org/D23112