modernize C++: avoid bind

In many cases std::bind() is kept because the code is much simpler

src/Mod/Fem/Gui/ViewProviderFemPostFunction.cpp

@@ -69,10 +69,12 @@ namespace sp = std::placeholders;
 
 void FunctionWidget::setViewProvider(ViewProviderFemPostFunction* view)
 {
+    //NOLINTBEGIN
     m_view = view;
     m_object = static_cast<Fem::FemPostFunction*>(view->getObject());
     m_connection = m_object->getDocument()->signalChangedObject.connect(
         std::bind(&FunctionWidget::onObjectsChanged, this, sp::_1, sp::_2));
+    //NOLINTEND
 }
 
 void FunctionWidget::onObjectsChanged(const App::DocumentObject& obj, const App::Property& p) {