Feat/add insee multiselect and licence groups

[Jorek57]

Close datagouv/data.gouv.fr#1195
Close datagouv/data.gouv.fr#1196

This config needs to be added to the udata.cfg in udata:
LICENSE_GROUPS = [ ("Autorités administratives", [{"value": "lov2", "recommended": True, "description": "Recommandée", "code": "etalab-2.0"}, {"value": "odc-odbl", "description": "License avec obligation de partage à l’identique", "code": "ODbL-1.0"}, {"value": "notspecified", "description": "Le Code des relations entre le public et l’administration ne s’applique pas"}]), ("Tous producteurs", [{"value": "lov2", "recommended": True, "description": "Recommandée"}, {"value": "cc-by", "code": "CC-BY"}, {"value": "cc-by-sa", "code": "CC-BY-SA"}, {"value": "cc-zero", "code": "CC0-1.0"}, {"value": "fr-lo", "code": "etalab-2.0"}, {"value": "odc-by", "code": "ODC-By-1.0"}, {"value": "odc-odbl", "code": "ODbL-1.0"}, {"value": "odc-pddl", "code": "PDDL-1.0"}, {"value": "other-at"}, {"value": "other-open"}, {"value": "other-pd"}, {"value": "notspecified"}]) ]

[maudetes]

I think we're clear!