SkillMod
(ctor) SkillMod( SkillName skill, bool relative, double value )
bool Absolute( get; set; )
bool ObeyCap( get; set; )
Mobile Owner( get; set; )
bool Relative( get; set; )
SkillName Skill( get; set; )
double Value( get; set; )
virtual bool CheckCondition()
void Remove()