legend and up/down i18n to core package.

status, all users, guests flags

places

organization, implement segment view for user visit card to better
inline in user management, implements several features for all roles
(allow enrollment, mandatory confirmation email by enrollment, allow
autocomplete, bulk changes...), add roles like lecture manager, quality
manager..., enhance the roles editor in user management

OO-3477: really remove initial author from repository entry, update course log with the new policy of user properties, springify export manager and co., make logging object annotation based

OO-3296: implement migration tool from institution resource manager to learn resource manager based on organizations