modernize C++: avoid bind

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

src/Mod/Fem/Gui/ViewProviderAnalysis.cpp

@@ -161,7 +161,9 @@ void ViewProviderFemAnalysis::setupContextMenu(QMenu *menu, QObject *, const cha
 {
     Gui::ActionFunction *func = new Gui::ActionFunction(menu);
     QAction *act = menu->addAction(tr("Activate analysis"));
-    func->trigger(act, std::bind(&ViewProviderFemAnalysis::doubleClicked, this));
+    func->trigger(act, [this](){
+        this->doubleClicked();
+    });
 }
 
 bool ViewProviderFemAnalysis::setEdit(int ModNum)

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) {

src/Mod/Fem/Gui/ViewProviderFemPostObject.cpp

@@ -111,8 +111,10 @@ public:
 
 private:
     FemPostObjectSelectionObserver() {
+        //NOLINTBEGIN
         this->connectSelection = Gui::Selection().signalSelectionChanged.connect(
             std::bind(&FemPostObjectSelectionObserver::selectionChanged, this, sp::_1));
+        //NOLINTEND
     }
 
     ~FemPostObjectSelectionObserver() = default;