ink_(medium) implications

BUR #10755 has been rejected.

create implication nib_pen_(medium) -> ink_(medium)
create implication ballpoint_pen_(medium) -> ink_(medium)
create implication millipen_(medium) -> ink_(medium)
create implication calligraphy_brush_(medium) -> ink_(medium)
create implication print_(medium) -> ink_(medium)

Added wiki page for ink_(medium). These mediums all use ink, so should imply ink.

Ballpoint pen ink is completely different in chemical composition and texture to, say, fountain pen ink, looks completely different too. Print is also way different in looks. Someone looking for ink artworks ain't going to be looking for these most of the time.

I wouldn't be against an umbrella tag though. Maybe move the current tag to black ink (medium), and repurpose ink (medium) into an umbrella tag?

The bulk update request #10755 (forum #214691) has been rejected by @nonamethanks.