ENH: Disable cast_xml usage of directory level properties

Compile definitions and include directories are no longer
obtained from the directory. This is replaced by usage of target level
properties.

Retain support for WRAPPER_LIBRARY_INCLUDE_DIRECTORIES and
WRAPPER_LIBRARY_LINK_LIBRARIES to control behavior.

Author: blowekamp

Wrapping/macro_files/itk_auto_load_submodules.cmake

@@ -102,8 +102,7 @@ function(generate_castxml_commandline_flags)
   ## ============================
 
   # create the files used to pass the file to include to castxml
-  get_directory_property(include_dir_list INCLUDE_DIRECTORIES)
-  list(APPEND include_dir_list ${ITK_INCLUDE_DIRS})
+  set(include_dir_list ${WRAPPER_LIBRARY_INCLUDE_DIRECTORIES})
   list(REMOVE_DUPLICATES include_dir_list)
 
   # CONFIG_CASTXML_INC_CONTENTS - variable used for building contents to write with file(GENERATE)
@@ -132,7 +131,6 @@ function(generate_castxml_commandline_flags)
       )
     endif()
   endforeach()
-  unset(_module_depends)
   set(
     CONFIG_CASTXML_INC_CONTENTS
     "${CONFIG_CASTXML_INC_CONTENTS}-Qunused-arguments\n"
@@ -146,29 +144,6 @@ function(generate_castxml_commandline_flags)
     "${CONFIG_CASTXML_INC_CONTENTS}-DITK_MANUAL_INSTANTIATION\n"
   )
 
-  # Get the compile_definitions of the module added with add_compile_definitions
-  # From the wrapping folder (current)
-  get_directory_property(compile_definition_list COMPILE_DEFINITIONS)
-  # And from the top module folder
-  set(module_folder "${WRAPPER_LIBRARY_SOURCE_DIR}/..")
-  get_directory_property(
-    compile_definition_list_at_module
-    DIRECTORY "${module_folder}"
-    COMPILE_DEFINITIONS
-  )
-  unset(module_folder)
-  # Merge and remove duplicates
-  list(APPEND compile_definition_list ${compile_definition_list_at_module})
-  unset(compile_definition_list_at_module)
-  list(REMOVE_DUPLICATES compile_definition_list)
-
-  foreach(def ${compile_definition_list})
-    set(
-      CONFIG_CASTXML_INC_CONTENTS
-      "${CONFIG_CASTXML_INC_CONTENTS}\"-D${def}\"\n"
-    )
-  endforeach()
-  unset(compile_definition_list)
   foreach(include_file ${WRAPPER_INCLUDE_FILES})
     if("${include_file}" MATCHES "<.*>")
       string(APPEND CASTXML_INCLUDES "#include ${include_file}\n")