Add who and where commands. 🔼

"Who" uses the same algorithm I wrote for the IG web site to tell us who is on and where they are.  Also include those ghosts that IG is telling me are on, even the hypergrid ones.

"Where" tells us what sims are up, including those on other servers.

reported=2023-11-14 14:02:25

reporter=onefang

priority=normal

category=Feature

severity=feature