Add a modem argument to gps.locate()

[SDHKLF]

As far as I can tell, gps.locate cannot be used with a wireless modem connected to the computer over a wired network. Adding an argument to use a specific modem, or having gps.locate search for modems over the network would make this possible.

[SquidDev]

Can you explain what you're trying to do here? If you've got a wireless modem connected to a wired network, I'd expect it to have a constant position, and so you don't need to use GPS at all.

[SDHKLF]

Right, in this case the computer is on a create contraption, but because turtles can connect to wired networks it has more potential utility than just this instance.

[SquidDev]

Right, that makes sense, thanks!

I think my main concern is that gps.locate returns the position of the adjacent block, which in this set up will be the wired modem rather than the calling computer. It sounds like sometimes that is useful, but definitely something we need to document when adding this.