Rename textureinsgnode example to a more fitting name

It shows QQuickFramebufferObject. "Texture in QSGNode" is ambiguous
as it suggests another type of use case (where an existing texture is
imported and used with the QQ scene - without rendering to it). This
would conflict with upcoming future examples, so rename to fboitem, which
is what this example is about.

The link from examples.qdoc is already using the fitting title so that will
just work.

Change-Id: Ide7a563398a4b464c55f14e10fa9386432b3d06d
Reviewed-by: Andy Nichols <andy.nichols@qt.io>

examples/quick/scenegraph/fboitem/doc/src/fboitem.qdoc

@@ -26,11 +26,11 @@
 ****************************************************************************/
 
 /*!
-    \example scenegraph/textureinsgnode
+    \example scenegraph/fboitem
     \title Scene Graph - Rendering FBOs
     \ingroup qtquickexamples
 
     \brief Shows how to use FramebufferObjects with Qt Quick.
 
-    \image textureinsgnode-example.jpg
+    \image fboitem-example.jpg
  */

examples/quick/scenegraph/fboitem/fboitem.pro

@@ -7,9 +7,9 @@ INCLUDEPATH += ../shared
 HEADERS += ../shared/logorenderer.h
 SOURCES += ../shared/logorenderer.cpp
 
-RESOURCES += textureinsgnode.qrc
+RESOURCES += fboitem.qrc
 
-target.path = $$[QT_INSTALL_EXAMPLES]/quick/scenegraph/textureinsgnode
+target.path = $$[QT_INSTALL_EXAMPLES]/quick/scenegraph/fboitem
 INSTALLS += target
 
 OTHER_FILES += \

examples/quick/scenegraph/fboitem/fboitem.qrc

@@ -1,5 +1,5 @@
 <RCC>
-    <qresource prefix="/scenegraph/textureinsgnode">
+    <qresource prefix="/scenegraph/fboitem">
         <file>main.qml</file>
     </qresource>
 </RCC>

examples/quick/scenegraph/fboitem/main.cpp

@@ -62,7 +62,7 @@ int main(int argc, char **argv)
 
     QQuickView view;
     view.setResizeMode(QQuickView::SizeRootObjectToView);
-    view.setSource(QUrl("qrc:///scenegraph/textureinsgnode/main.qml"));
+    view.setSource(QUrl("qrc:///scenegraph/fboitem/main.qml"));
     view.show();
 
     return app.exec();

examples/quick/scenegraph/scenegraph.pro

@@ -5,7 +5,7 @@ qtConfig(opengl(es1|es2)?) {
             graph \
             simplematerial \
             sgengine \
-            textureinsgnode \
+            fboitem \
             openglunderqml \
             textureinthread \
             twotextureproviders