Adds initial intermediate qt6 porting state

qt6-after/qt6-migrated-legatus/Lts/Common/PluginInterfaces/data_plugin_interface.h

@@ -0,0 +1,47 @@
+
+
+
+#pragma once
+
+#include <ProjectConfig/project_defines.h>
+
+#include <QObject>
+#include <memory>
+
+
+namespace NGL
+{
+class INGLLogger;
+}
+namespace LtsSession
+{
+class LtsSessionDataDds;
+}
+
+namespace DataPluginBase
+{
+
+
+class Interface
+{
+public:
+  Interface() = default;
+  virtual ~Interface() = default;
+};
+
+
+
+class Plugin
+{
+public:
+  Plugin() = default;
+  virtual ~Plugin() = default;
+
+  virtual QString pluginName() const = 0;
+  virtual std::shared_ptr<Interface> createDataInterface(LtsSession::LtsSessionDataDds *session) = 0;
+  virtual bool availableInPartition(IDL::PartitionType partition) const = 0;
+};
+
+} 
+
+Q_DECLARE_INTERFACE(DataPluginBase::Plugin, "data:")