Make it easier to call the venue

[greacen]

Originally I described this as "Show restaurant phone number" but maybe there's a better way to achieve the 'easier to call' outcome.

This would be a nice-to-have feature for Fridays when we need to call up a place to confirm that our group can eat there - currently someone has to go to the venue's website or google maps to get their number.

[JeffreyATW]

There's upsides and downsides here.

Currently you can click the address to go directly to the Google Maps place page, with the phone number there.

If we extracted the phone number while adding the restaurant, we could indeed put it on the page - but if it changed on the Google place page, we wouldn't know if it was out of date. That said, it doesn't seem like that would happen often.