Create a set of classes/interfaces that will be used for display purposes only.
Cache would be used instead of using the secondary wb_terms SQL table.
Output: Data that is enough to display HTML/wikitext link to the Entity page (probably including things like label, description, if language fallback was used)
This task focuses on items, and properties.
Similar approach would be likely also used for Lexeme and MediaInfo entities - this is left out for the follow up work.