[fix #1000] export name and first name in api

spec/serializers/individual_serializer_spec.rb

@@ -0,0 +1,10 @@
+describe IndividualSerializer do
+  describe '#attributes' do
+    let(:individual){ Individual.create(nom: 'nom', prenom: 'prenom') }
+
+    subject { IndividualSerializer.new(individual).serializable_hash }
+
+    it { is_expected.to include(nom: 'nom') }
+    it { is_expected.to include(prenom: 'prenom') }
+  end
+end