Qt6 Migration: Complete migration with DDS/RTI support and build validation

Major Changes:
- Merged latest Qt5 devel content from dlbo (292 files changed, 7 new dirs)
- Consolidated forward-declarations and include folders
- Removed unneeded modules per Niklas' repo check list

Build System Fixes:
- Fixed CMake VERSION_GREATER syntax in ParticipantManagement/CMakeLists.txt
- Added VLC packages (libvlc-dev, vlc-plugin-base) to docker_build.sh
- Added PostgreSQL dev packages (libpq-dev, postgresql-server-dev-all) to Dockerfile
- Fixed locale warnings (ANSI_X3.4-1968 → C.UTF-8)
- Fixed ArcGIS SDK path warnings when BUILD_ARCGIS=OFF

Code Generation Fixes:
- Fixed IDL enum collisions (PortType→CorePortType/DdsutPortType, PdmEventType)
- Fixed Grantlee template svc_translation.cpp.grantlee:
  - Changed {{ idl_enum.name }}_def:: to {{ idl_enum.name }}::
  - Fixed .underlying() calls for C++11 scoped enums (enum class)
- Removed generated files from repo (moc_*, *_dtc.h, *_ftc.h)

Validation:
- BUILD_RTI=ON: SUCCESS
- BUILD_RTI=OFF: SUCCESS
- C++17 standard maintained for RTI 7.7 compatibility
- Ubuntu 26.04 Docker environment verified

Remaining Warnings (expected):
- BgViewer, KDChart, KDReports, Poppler-Qt6 not found (optional features)

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

qt5-before/dlbo/Lts/Tools/SocketSniffer/index.css

@@ -0,0 +1,40 @@
+body{
+    width: 99%;
+    height: auto;
+    margin: 10px;
+
+}
+h1 {
+    margin-left: 10px;
+    color: white;
+    padding: 10px;
+}
+#header {
+    width: 100%;
+    height: auto;
+    background-color: rgb(90, 90, 90)
+}
+.list-lvl1 {
+    font-size: large;
+    font-weight: bold;
+    list-style-type: none;
+    margin-top: 5px;
+    margin-bottom: 5px;
+}
+.list-lvl2 {
+    font-size: medium;
+    font-weight: normal;
+    list-style-type: disc;
+    padding-top: 0px;
+    margin-top: 0px;
+    margin-bottom: 10px;
+}
+.list-lvl3{
+    font-size: medium;
+    list-style-type: circle;
+    padding-top: 0px;
+}
+
+.table-condensed{
+    font-size: 12px;
+  }