add adapter for sgmap api carto

lib/carto/sgmap/quartier_prioritaire_adapter.rb

@@ -0,0 +1,26 @@
+class CARTO::SGMAP::QuartierPrioritaireAdapter
+  def initialize(coordinates)
+    @coordinates = GeojsonService.to_polygon(coordinates)
+  end
+
+  def data_source
+    @data_source ||= JSON.parse(CARTO::SGMAP::API.search_qp(@coordinates), symbolize_names: true)
+  end
+
+  def to_params
+    params = {}
+
+    data_source[:features].each_with_index do |feature, index|
+      params[index] = feature[:properties]
+      params[index][:geometry] = feature[:geometry].to_s
+    end
+
+    params
+  end
+
+  def properties_to_fetch
+    [:code,
+     :nom,
+     :commune]
+  end
+end