Removing holding_bikini -> holding_swimsuit aliases

Posted under Tags

BUR #14754 has been rejected.

remove alias holding_bikini -> holding_swimsuit
remove alias holding_bikini_top -> holding_swimsuit
remove alias holding_bikini_bottom -> holding_swimsuit
create implication holding_bikini_top -> holding_bikini
create implication holding_bikini_bottom -> holding_bikini

Since we're making the split between one-pieces and bikinis for all the other x_swimsuit tags, these aliases need to go. I've also included implications for tops/bottoms to imply holding_bikini.