Adaption of FreeCAD to QuarterWidget

-removes all soqtviewer references
-create a quarter adaptor class which implements missing functionality
-adopts freecad code to make use of SoRenderManager and changed View3DInventorViewer  interface

data/examples/CMakeLists.txt

@@ -33,21 +33,6 @@ if (WIN32 AND FREECAD_LIBPACK_USE)
     endforeach (it)
     SOURCE_GROUP("pivy" FILES ${FREECAD_LIBPACK_PIVY_COIN})
 
-    # pivy/gui
-    foreach (it ${FREECAD_LIBPACK_PIVY_SOQT})
-        get_filename_component(libfile ${it} NAME)
-        set(out "${CMAKE_BINARY_DIR}/lib/pivy/gui/${libfile}")
-        add_custom_command(
-            DEPENDS   ${it}
-            OUTPUT    ${out}
-            COMMAND   ${CMAKE_COMMAND}
-            ARGS      -E copy_if_different ${it} ${out}
-            MAIN_DEPENDENCY ${it}
-            COMMENT   "Copy file to ${out}"
-    )
-    endforeach (it)
-    SOURCE_GROUP("pivy\\gui" FILES ${FREECAD_LIBPACK_PIVY_SOQT})
-
     # shiboken
     foreach (it ${FREECAD_LIBPACK_SHIBOKEN})
         get_filename_component(libfile ${it} NAME)
@@ -130,7 +115,6 @@ if (WIN32 AND FREECAD_LIBPACK_USE)
 
     set(FREECAD_LIBPACK_FILES
         ${FREECAD_LIBPACK_PIVY_COIN}
-        ${FREECAD_LIBPACK_PIVY_SOQT}
         ${FREECAD_LIBPACK_SHIBOKEN}
         ${FREECAD_LIBPACK_PYSIDE}
         ${FREECAD_LIBPACK_PYSIDEUIC_ABS}