[Feature] - be able to win

[seiyria]

every class has different win conditions, and will probably need a function or something to determine if they win or not. or maybe track statistics for wins?

also, you have to go to a place like a town and find a certain landmark to retire

stuff to do:

• add new information to a background to capture how retirement works
  • hasItems (should check for items in the same way the kit generator works)
  • hasStats (stats will need to be stored on a per-session basis in addition to what they do right now)
• add victory screen (popup, like game over)
  • add losses stat
  • add wins stat