Add tools for .blocks Test find-contact-by-chat Test find-contact-by-email Test find-contact-by-number Test find-contact-by-organisation Test find-contact-by-pgpkey Test find-contact-by-photo Test find-contact-by-site Test get-contact-chats Test get-contact-emails Test get-contact-numbers Test get-contact-organisations Test get-contact-pgpkeys Test get-contact-photos Test get-contact-sites Test list-chat-contacts Test list-contact-organisations Test list-organisation-contacts Test set-contact-addresses Test set-contact-birthday Test set-contact-chats Test set-contact-emails Test set-contact-groups Test set-contact-name Test set-contact-numbers Test set-contact-organisations Test set-contact-pgpkeys Test set-contact-photos Test set-contact-sites Add ability to filter on unset values in entries Add ability to remove values in entries Add man pages Add readme Add tests