Merge branch 'geospatial' into 'master'

config/config.exs

config/prod.exs

config/test.exs

lib/mobilizon/addresses/addresses.ex

lib/mobilizon_web/context.ex

lib/mobilizon_web/resolvers/address.ex

lib/mobilizon_web/schema.ex

lib/mobilizon_web/schema/address.ex

lib/service/geospatial/addok.ex

lib/service/geospatial/geospatial.ex

lib/service/geospatial/google_maps.ex

lib/service/geospatial/map_quest.ex

lib/service/geospatial/nominatim.ex

lib/service/geospatial/photon.ex

lib/service/geospatial/provider.ex

mix.exs

mix.lock

test/fixtures/vcr_cassettes/geospatial/addok/geocode.json

test/fixtures/vcr_cassettes/geospatial/addok/search.json

...ixtures/vcr_cassettes/geospatial/google_maps/geocode.json