Add OpenStreetMap_Places as a search table

[stdavis]

I'm guessing that it will replace some existing tables as well.

Ref: agrc/porter#180

[steveoh]

My understanding is that it is supplemental and will not be replacing anything in the SGID. Unsure if it will replace anything in masquerade.

[stdavis]

Yes, I meant that it will replace some or these tables.

[stdavis]

We also may want to add the idea of context when we add this provider. For example, if you are searching for "Starbucks" it would be helpful to show the city in the suggestion text.