* remove EFFECT_FLAG_COPY_INHERIT

* delete card target on RESET_COPY

* add effect_indexer::iterator remove_effect(effect* peffect)

* minor fix

* fix field::add_effect

avoid duplicate entries like card::add_effect

* reload script after removing all effects

* update signature

* always call field::remove_effect

* fix field::adjust_grant_effect

* avoid nested EFFECT_TYPE_GRANT