event-controller: Add separate library for event controllers

SugarEventController is an abstract object that attaches to a widget
and interprets an arbitrary set of events. Implementations of that
object get to define the sequence of events that trigger these.

The basic touch gestures (long press, rotate, swipe, zoom) have
been implemented on top of that object.

Signed-off-by: Carlos Garnacho <carlos@lanedo.com>
Acked-by: Simon Schampijer <simon@laptop.org>

configure.ac

@@ -25,6 +25,9 @@ PKG_CHECK_MODULES(EXT, gtk+-3.0 gdk-3.0 gdk-pixbuf-2.0 sm ice alsa librsvg-2.0)
 PYGTK_DEFSDIR=`$PKG_CONFIG --variable=defsdir pygtk-2.0`
 AC_SUBST(PYGTK_DEFSDIR)
 
+GLIB_MKENUMS=`$PKG_CONFIG glib-2.0 --variable=glib_mkenums`
+AC_SUBST(GLIB_MKENUMS)
+
 # Setup GETTEXT
 #
 ALL_LINGUAS="af am ar aym bg bi bn_IN bn ca cs da de dz el en es fa_AF fa ff fil fr gu ha he hi ht hu id ig is it ja km ko kos mg mi mk ml mn mr ms mvo nb ne nl pa pap pl ps pt_BR pt quz ro ru rw sd si sk sl sq sv sw ta te th tr tvl tzo ug ur vi wa yo zh_CN zh_TW"
@@ -45,6 +48,7 @@ src/sugar3/Makefile
 src/sugar3/activity/Makefile
 src/sugar3/bundle/Makefile
 src/sugar3/graphics/Makefile
+src/sugar3/event-controller/Makefile
 src/sugar3/presence/Makefile
 src/sugar3/datastore/Makefile
 src/sugar3/dispatch/Makefile