* Replace direct access to some ERP5TypeInformation attributes by use of
  accessors:
  - base_category_list -> getTypeBaseCategoryList
  - property_sheet_list -> getTypePropertySheetList
* Split Base.initializePortalTypeDynamicProperties to delegate some work to
  portal types (new 'updatePropertySheetDefinitionDict' method).

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@30159 20353a03-c40f-0410-a6d1-a30d3c3de9de