Game events instead of plain text messages. Event to message processor.
Test container feature.
DONE check for container tests. Passed all actions tests (for events).
Renamed LevelGenerator to Dungeon. Moved levels stuff to Dungeon.
Moved some level-related routines from the Game back to Level.
Extracted level tests.
Moved next level picking routine to Dungeon.
Merged current level into saved levels. Savefile v34.2.
Moved all game test mocks together.
Moved types registry to Dungeon. Added some helper functions for types and objects making.