* detect tokens and do not add them to pile of cards
* only add spells not already in exile to their owners discard pile
* add the played card to onPlay callback

* implement most of the kraken cards
* unify permanent marks
* add state based actions hook for card implementations

adding area effects and hooks for permanents entering and leaving tiles

* Fix alot of bugs caused by permanents without tiles
* Implement a permanent choice to select the permanents in a pile
* Fix how pile hooks are called

State-based action are executed anytime a action resolved to
handle events caused by the game state.

Currently state-based actions only destroy unit with more damage
than health.