erp5_forge: Migrate Glossary Extension to ZODB Property Sheets and Portal Types as classes.

Using the legacy API was broken and this is also to prepare
DocumentationHelper and ClassTool removal.
ZODB Components: Remove ClassTool and DocumentationHelper relying on it.
erp5_hr_l10n_jp: Removed as it's deprecated and unused.
erp5_core: Fix import of Categories through spreadsheet following removal of ClassTool.