More pectorals implications

BUR #4157 has been approved by @evazion.

create implication bursting_pecs -> pectorals
create implication bouncing_pecs -> pectorals
create implication cum_on_pectorals -> pectorals
create implication cum_on_pectorals -> cum_on_body
create implication pectoral_docking -> pectoral_press
create alias pectoral_to_pectoral -> pectoral_docking
create alias semen_on_pecs -> cum_on_pectorals

More changes to match the breast tags.

I do have a suggestion that I wasn't sure about.
Should breast/pectoral pillow implicate face to pecs/breasts? Or do we consider that different since it's just the side of the face?
And what about the gender neutral head on chest?

I thought those tags could use another BUR/discussion on their own.

Should breast/pectoral pillow implicate face to pecs/breasts? Or do we consider that different since it's just the side of the face?
And what about the gender neutral head on chest?

Well, according to the breast/pecs pillow wiki they also apply for when the back of the head is resting on the chest, so I don't think it should imply face_to_breast/pecs, otherwise stuff like post #4191028 would end up getting tagged as face to breasts

A head on chest implication would definitely work, tho.

I populated and made a wiki for cum on pectorals so I added it to the BUR as well. I replicated most of the things already done to cum on breasts.
Do let me know if something seems redundant.

Removed the cum on pecs, pec grab, and pectorals grab aliases, I don't think they're necessary.

The bulk update request #4157 (forum #177238) has been approved by @evazion.