Adding a geolocation attribute to client model

[cedricbonhomme]

MONARC Stats Service, the service behind dashboard.monarc.lu, operated by CASES Luxembourg, aims to provide relevant data about the current cybersecurity trends, focused in the Luxembourg area. This is inherent to the core mission of CASES and the fact that most of MONARC users are located in the Luxembourg Greater Region. However, MONARC is used more and more and all over the world. And threats can vary around the world. This is why it could be nice to add a geolocation attribute to clients (not necessary something precise - city or region level is enough). This attribute could be set via a form by the users.

Also it would be simply useful to be able to filter out data from some users (with a cybersecurity geographical context too much different). After all, we are using a .lu TLD.
These filtered data could still be displayed, but why not on a map (OpenStreet map)...