Session 022: Migrate Lts/Tools (72 submodules) to Qt6

- Copied complete Lts/Tools directory from qt5-before to qt6-after
- Updated 32 CMakeLists.txt files (Qt5:: → Qt6::)
- Tools subdirectory already included in parent Lts/CMakeLists.txt
- All 72 tool submodules now present in qt6-migrated-legatus
- Includes: Adler, ArAssets, ConfigX, DBAdministration, DBUpdate,
  DdsView, InfrastructureManagement, and 67 more tools
- C++17 standard (RTI 7.7.0 compatibility maintained)
- Tests deferred until final validation phase

Migration progress:
✅ Lts/Application (68 files)
✅ Lts/DDS (verified Qt6-ready)
✅ Lts/Plugins (60 submodules, verified)
✅ Lts/Projects (5 submodules, verified)
✅ Lts/Proxies (13 submodules, verified)
✅ Lts/Services (47 submodules, verified)
✅ Lts/Tools (72 submodules, copied + CMake updated)
✅ Lts/Viewer (LtsFileDialog, LtsReportDisplay, SituationMap)
🟡 TetraIF (partial)
🟡 Z (partial: nglwidgets, QtSingleApplication, qsql_informix, WMS_Interface)

qt6-after/qt6-migrated-legatus/Lts/Tools/Splash/main.cpp

@@ -0,0 +1,67 @@
+/**
+  * @RDE_HEADER@
+  * Splash Application
+  * $Id$
+  * $HeadURL$
+  * $Author$
+  *
+  * Created by Mike Wille, NLE, 2019-06-21
+  */
+
+#include "Splash.h"
+
+#include <LtsPluginManager/lts_plugin_manager.h>
+#include <LtsPluginManager/lts_plugin_loader.h>
+#include <nglapplication/nglapplication.h>
+#include <nglapplication/nglloggerhandler.h>
+#include <NGLLogger/INGLLogger.h>
+
+#include <QApplication>
+#include <QtCore/QDebug>
+
+
+int main(int argc, char **argv)
+{
+  NGLApplication app(argc, argv);
+  app.createLogger("Splash");
+  //QNetworkProxy::setApplicationProxy(QNetworkProxy());
+
+  QStringList args(QApplication::arguments());
+  QStringList langs({ QStringLiteral("en_GB"), QStringLiteral("en_US"), QStringLiteral("de_DE") });
+
+  if (args.count() < 3)
+  {
+    qWarning() << "usage:" << QApplication::arguments().at(0) << "<branding> <language "<<langs<<">]";
+    return -1;
+  }
+
+  const QString &lang = args.at(2);
+  if (!args.contains(lang))
+  {
+    qWarning() << "unknown language iso code - available iso codes:" << langs;
+    return -1;
+  }
+
+
+  // Load Plugins
+  LtsPluginManager::LtsPluginLoader *pluginLoader = LtsPluginManager::LtsPluginLoader::getInstance();
+
+  QString projectPluginName = QApplication::arguments().at(1);
+
+  if (projectPluginName.isEmpty())
+  {
+    qWarning() << "No Project Plugin Iid specified - abort.";
+    return -1;
+  }
+
+  // load project plugin
+  if (!pluginLoader->loadPlugins(LtsPluginManager::PluginType::PROJECT, nullptr, {projectPluginName}))
+  {
+    qWarning() << "Error loading Project Plugin - abort.";
+    return -1;
+  }
+
+  QScopedPointer<Splash> s(new Splash(lang));
+
+  return app.exec();
+}