QetGraphicsTableItem : add dialog to inform user

When user edit the query of an existing table/s if the content to
display is bigger than the content who can be displayed by the table/s a
dialog is opened for inform user of the current situation.

sources/qetgraphicsitem/ViewItem/projectdbmodel.cpp

@@ -309,8 +309,6 @@ void ProjectDBModel::dataBaseUpdated()
 	auto new_record = m_record;
 	m_record = original_record;
 	
-	//This a very special case, if this nomenclature model is added
-	//befor any element, column count return 0, so in this case we emit column inserted
 	if (new_record.size() != m_record.size())
 	{
 		emit beginResetModel();