COMP: Documentation - Exclude Utilities, Widgets/Plugins and CMake directory

Documentation/Doxyfile.txt.in

@@ -678,6 +678,9 @@ EXCLUDE_PATTERNS       = moc_*.cxx \
                          ui_*.h \
                          */.git/* \
                          */Testing/* \
+                         */Utilities/* \
+                         */Widgets/Plugins/* \
+                         */CMake/* \
                          @CTK_ADDITIONAL_EXCLUDE_PATTERN@
 
 # The EXCLUDE_SYMBOLS tag can be used to specify one or more symbol names