* new trap monster rule

* new ruling of special summon once

* new ruling of (special) summon count in oath

* new ruling of trigger effect

trigger effect cannot be activated if the card is moved to other place

* update (extra) deck effect handling

including new rule that effect of face down card in extra deck cannot be activated unless explicitly written

* new trap monster rule: changing to face down

* new trap monster rule: disabled

* fix changing to face down of trap monster