cc_item.cpp/h: move getPageNumber() into cpp file

clean up

src/gui/components/cc_item.cpp

@@ -317,4 +317,7 @@ void CComponentsItem::setSelected(bool selected, const fb_pixel_t& sel_frame_col
 	col_frame = cc_item_selected ? sel_frame_col : frame_col;
 }
 
-
+uint8_t CComponentsItem::getPageNumber()
+{
+	return cc_page_number;
+}