Added administrative division data to database as migration script.
Added administrative division data to database as migration script.

The administrative division data has the outlines of Chile's
regions, provinces and communes.
This data needs to be part of the database since it's necessary
to perform geographic queries restricted to a single division,
e.g. finding all cables that run through a province.
The migration script is was compressed with gunzip to follow
GitHub's size file size restrictions.

niclabs/net-viz,niclabs/net-viz,niclabs/net-viz,niclabs/net-viz