add Debug.PreSummon

stop decrease the counter for EFFECT_EXTRA_RELEASE_SUM effect when
canceling tribute summon

number of counter should be uint16

fix returning of trap monster

fix copy and replace effect

for Acid Trap Hole

add ReplaceEffect

changes

bad range check

Change effect_flag size from 8 to 4 bytes

it breaks effects, like e4 of Venom Swamp, Harpies Hunting Ground

Fix illegal enum forward declaration of effect_flag and effect_flag2

Specifiying the size is mandatory. Fixes the compilation on GCC (debian).