[C2] itemdata.txt parser

[Master Toma]

Parameters added in c4 but used in c2:

recipe_id
reduced_soulshot
reduced_spiritshot
reduced_mp_consume
attack_skill
magic_skill
item_skill_enchanted_four

Parameters in c1 missing in c4:

effective_range

Parameters Added in c4 but don't used for c2:

can_equip_sexcan_equip_race
can_equip_change_class
can_equip_class
can_equip_agit
can_equip_castle
can_equip_castle_num
can_equip_clan_leader
can_equip_clan_level
can_equip_hero
can_equip_nobless
can_equip_chaotic

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