[Familiar] Rocky Elemental

finally Rocky Elemental AI is done!

Our Elemental work as a summons. It starts with a idle state but it is always in searching for enemies, when check enemy walk toward it and begin to attack with his punchs charged with sysmic energy, until down it. When don't check any enemies around it, will turn back toward Hero and follows. This Elemental is a summons, so it could be dispelled by magic of certain npg or enemies.