feat!(client, server, api, shared): revamp data requests!
 * now even more generic than before
 * also implemented GET game/{id}
 * GET game/all_forming and game/my_games now return only ids
 * client now has a way to cache basic information about all games
   fetched in the play screen, reducing the amount of data transferred

feat(server, shared): PubUserDetails datarequest

feat(client, server, shared): vittumainen bandage päälle, olkoot stna.

feat(server, shared): handle currently existing datarequests

feat(shared): add a channel and messages for generic data requests