Check for duplicates - Githubissues

This PR aim to close #44 (and follow https://github.com/QwantResearch/geocoder-tester/pull/26)

Add an option to check the dupplicates: --check-duplicates=10

This will run geocoder tester as always, and for each query, after the tests on the expected fields, we'll check that no objects in the n first fields of the response are duplicates.

If the option is not there everything should run as usual.

The notion of a duplicate is something that the user can't differentiate, so we implemented something quite specific for qwant's display of the autocomplete's response:

for a poi, we consider the object's label + it's address
for the other objects only the label

For the moment this mechanism is quite hardcoded in get_label_for_duplicates, I'm completely open if you see a more generic way to do this.

The error log will be formatted like:

Duplicates found in the response
# Search was: indre
## Entry ('Reuilly (Indre) (Reuilly)', 'poi', 'Sentier des Tournelles (Reuilly)') has been found for:
           label           |         id          | type | osm_id | housenumber | street | postcode |  city   | country |        lat        |        lon         |               addr               | poi_types 
———————————————————————————|—————————————————————|——————|————————|—————————————|————————|——————————|—————————|—————————|———————————————————|————————————————————|——————————————————————————————————|———————————
 Reuilly (Indre) (Reuilly) | osm:node:1854248363 | poi  |   _    |      _      |   _    |  36260   | Reuilly |    _    | 47.08530172468403 | 2.0474608578328177 | Sentier des Tournelles (Reuilly) |  railway  
 Reuilly (Indre) (Reuilly) | osm:node:4498318505 | poi  |   _    |      _      |   _    |  36260   | Reuilly |    _    | 47.08529686318019 | 2.047508718499927  | Sentier des Tournelles (Reuilly) |  railway  

## Entry ('Indre Oslofjord (Oslo)', 'poi', 'Tøyengata (Oslo)') has been found for:
         label          |        id         | type | osm_id | housenumber | street | postcode | city | country |        lat        |        lon         |       addr       | poi_types 
————————————————————————|———————————————————|——————|————————|—————————————|————————|——————————|——————|—————————|———————————————————|————————————————————|——————————————————|———————————
 Indre Oslofjord (Oslo) | osm:way:233882196 | poi  |   _    |      _      |   _    |    _     | Oslo |    _    | 59.91907628783925 | 10.771447863393677 | Tøyengata (Oslo) |  garden   
 Indre Oslofjord (Oslo) | osm:way:233882197 | poi  |   _    |      _      |   _    |    _     | Oslo |    _    | 59.91908412491954 | 10.771563565673642 | Tøyengata (Oslo) |  garden

geocoders / geocoder-tester

Check for duplicates #48