Face down changes:
* GUI: added visible face down type and real card name for controller/owner (opponent can see it after game ends);
* GUI: added day/night button to view real card for controller/owner (opponent can see it after game ends);
* game: fixed that faced-down card can render symbols, abilities and other hidden data from a real card;
* images: added image support for normal faced-down cards;
* images: added image support for morph and megamorph faced-down cards;
* images: added image support for foretell faced-down cards;
Other changes:
* images: fixed missing tokens from DDD set;
* images: no more client restart to apply newly downloaded images or render settings;
* images: improved backface image quality (use main menu -> symbols to download it);
* added dungeon and dungeon room class
* [AFR] Implemented Tomb of Annihilation
* [AFR] Implemented Shortcut Seeker
* [AFR] Implemented Gloom Stalker
* [AFR] Implemented Nadaar, Selfless Paladin
* added room triggers
* added more venturing code, currently untested
* fixed error
* moved venture into dungeon from player class to game class
* removed unnecessary sourceobject from dungeon
* fixed npe error
* added dungeon completion
* fixed concurrent modification exception
* added logging
* added proper copy methods
* added views
* updated room text generation
* added some missing code
* finished implementing CompletedDungeonCondition
* [AFR] Implemented Ellywick Tumblestrum
* [AFR] Implemented Lost Mine of Phandelver
* added choice dialog for dungeons
* [AFR] Implemented Dungeon of the Mad Mage
* small text fix
* added initial dungeon test
* [AFR] Implemented Cloister Gargoyle
* [AFR] Implemented Dungeon Crawler
* small text change for dungeon rooms
* added more tests
* some simplification to dungeon props
* updated testing helper functions
* added currently failing test for venturing on separate steps and turns
* added tests for dungeon completion
* fixed missing trigger visual and dungeons not persisting through turns
* some text updates
* added rollback test
* added a test for multiple dungeons at once
* added one more condition test
"b" + "r" now changed to 'b' + 'w'. It's more straight-forward, and may cause perfomance improvements - character primitives allocation is faster and less expensive than string creation.
