Nipples aliases

BUR #730 has been rejected.

create implication huge_nipples -> nipples
create implication small_nipples -> nipples
create implication inverted_nipples -> nipples
create implication puffy_nipples -> nipples
create implication colored_nipples -> nipples

Naturally it should be implicated since it refers to specific nipple size or shape, like how huge breasts was implied to breasts.

None of these implicate nipples because they can be used with covered nipples, which is separate from nipples.

The bulk update request #730 (forum #4032) has been rejected by @TrueKringe.