Add documentation to public procs (fixes automated tests), uniform doc sytle, streamline idioms, reduce divergencies between oracle and postgres codebase
Uniform documentation style, make as::item_display_sb::set_item_display_type as its sibling as::item_display_f::set_item_display_type (fixes automated tests)
Add documentation for public proc (fixes automated tests), feed user_id from arguments to permission api, explicitly default to current user (as called procs would do anyway)