Add option to hide entries from action selection

Intended to be used to hide legacy version of actions types (e.g. HTTP)

lib/macro/macro-action-edit.cpp

@@ -17,6 +17,9 @@ static inline void populateActionSelection(QComboBox *list)
 		QString entry(obs_module_text(action._name.c_str()));
 		if (list->findText(entry) == -1) {
 			list->addItem(entry);
+			qobject_cast<QListView *>(list->view())
+				->setRowHidden(list->count() - 1,
+					       action._hidden);
 		} else {
 			blog(LOG_WARNING,
 			     "did not insert duplicate action entry with name \"%s\"",

lib/macro/macro-action-factory.hpp

@@ -12,6 +12,7 @@ struct MacroActionInfo {
 	std::function<std::shared_ptr<MacroAction>(Macro *m)> _create = nullptr;
 	CreateActionWidget _createWidget = nullptr;
 	std::string _name;
+	bool _hidden = false;
 };
 
 class MacroActionFactory {