xbmc: add support for project based splash screens

Signed-off-by: Stephan Raue <stephan@openelec.tv>

packages/mediacenter/xbmc/install

@@ -89,7 +89,11 @@ cd -
 # overriding Splash image
 mkdir -p $INSTALL/usr/share/xbmc/media
   rm -rf $INSTALL/usr/share/xbmc/media/Splash.png
-  cp $PKG_DIR/splash/Splash.png $INSTALL/usr/share/xbmc/media/
+  if [ -f $PROJECT_DIR/$PROJECT/splash/splash.png ]; then
+    cp $PROJECT_DIR/$PROJECT/filesystem/splash/splash.png $INSTALL/usr/share/xbmc/media/Splash.png
+  else
+    cp $PKG_DIR/splash/splash.png $INSTALL/usr/share/xbmc/media/Splash.png
+  fi
 
 mkdir -p $PYTHON_LIBDIR/site-packages
   cp -R $PKG_BUILD/tools/EventClients/lib/python/* $PYTHON_LIBDIR/site-packages