Add Tooltip to the build system

Let's compile the tooltip and also export it to our QML plugin.

Signed-off-by: Artur Duque de Souza <asouza@kde.org>

declarativeimports/core/CMakeLists.txt

@@ -10,6 +10,7 @@ set(corebindings_SRCS
     svgitem.cpp
     framesvgitem.cpp
     dialog.cpp
+    tooltip.cpp
     )
 
 INCLUDE_DIRECTORIES(

declarativeimports/core/corebindingsplugin.cpp

@@ -32,6 +32,7 @@
 #include "svgitem_p.h"
 #include "theme_p.h"
 #include "dialog.h"
+#include "tooltip.h"
 
 void CoreBindingsPlugin::registerTypes(const char *uri)
 {
@@ -49,6 +50,7 @@ void CoreBindingsPlugin::registerTypes(const char *uri)
     qmlRegisterType<Plasma::SortFilterModel>(uri, 0, 1, "SortFilterModel");
 
     qmlRegisterType<DialogProxy>(uri, 0, 1, "Dialog");
+    qmlRegisterType<ToolTipProxy>(uri, 0, 1, "ToolTip");
 
     qmlRegisterInterface<Plasma::Service>("Service");
     qRegisterMetaType<Plasma::Service*>("Service");