(#566) Major rewrite of how to build and update PdmUiTreeOrdering items

Removed findChildItemIndex() which caused performance issues for large
models. Replaced with a new algorithm using std::map. Added unit tests

Fwk/AppFwk/cafUserInterface/cafUserInterface_UnitTests/CMakeLists.txt

@@ -0,0 +1,61 @@
+cmake_minimum_required (VERSION 2.8)
+
+find_package ( Qt4 COMPONENTS QtCore QtGui QtMain )
+include (${QT_USE_FILE})
+
+project ( cafUserInterface_UnitTests )
+
+include_directories (
+	${CMAKE_CURRENT_SOURCE_DIR}
+	${CMAKE_CURRENT_SOURCE_DIR}/..
+
+    ${cafProjectDataModel_SOURCE_DIR}
+    ${cafPdmCore_SOURCE_DIR}
+    ${cafPdmUiCore_SOURCE_DIR}
+    ${cafPdmXml_SOURCE_DIR}
+    
+    ${cafUserInterface_SOURCE_DIR}
+   
+)
+
+
+set( PROJECT_FILES
+
+	cafUserInterface_UnitTests.cpp 
+	
+	cafPdmUiTreeViewModelTest.cpp 
+
+	gtest/gtest-all.cpp
+)
+
+# add the executable 
+add_executable (${PROJECT_NAME}
+	${PROJECT_FILES}
+)
+
+source_group("" FILES ${PROJECT_FILES})
+
+message(STATUS ${PROJECT_NAME}" - Qt includes : "  ${QT_LIBRARIES})
+
+target_link_libraries ( ${PROJECT_NAME}
+	cafProjectDataModel
+    cafPdmUiCore
+    cafPdmCore
+    cafPdmXml
+    cafUserInterface
+    ${QT_LIBRARIES}
+)
+
+# Copy Qt Dlls
+if (MSVC)
+    set (QTLIBLIST QtCore QtGui)
+    foreach (qtlib ${QTLIBLIST})
+        
+        # Debug
+        execute_process(COMMAND cmake -E copy_if_different ${QT_BINARY_DIR}/${qtlib}d4.dll ${CMAKE_CURRENT_BINARY_DIR}/Debug/${qtlib}d4.dll)
+        
+        # Release
+        execute_process(COMMAND cmake -E copy_if_different ${QT_BINARY_DIR}/${qtlib}4.dll ${CMAKE_CURRENT_BINARY_DIR}/Release/${qtlib}4.dll)
+    endforeach( qtlib )
+endif(MSVC)
+