mass update feather_hat -> hat_feather
create alias feathered_cap (21) -> hat_feather (1081)
create alias feathered_hat (1) -> hat_feather (1081)
create implication feathered_headdress (170) -> headdress (4315)
create implication headdress (4315) -> headwear (242696)
create implication tricorne (158) -> hat (222768)
create implication bicorne (44) -> hat (222768)
remove implication hat_feather (1081) -> headwear (242696)
create implication hat_feather (1081) -> hat (222768)