address: add maxlength, upd default map center and add loader messages in addresses form

src/Bundle/ChillMainBundle/Resources/public/vuejs/Address/App.vue

@@ -26,6 +26,12 @@
       <div v-if="errors.length > 0">
          {{ errors }}
       </div>
+      <div v-if="loading">
+            {{ $t('loading') }}
+      </div>
+      <div v-if="success">
+            {{ $t('person_address_creation_success') }}
+      </div>
    </div>
 
    <div>
@@ -68,6 +74,12 @@ export default {
       },
       errors() {
          return this.$store.state.errorMsg;
+      },
+      loading() {
+         return this.$store.state.loading;
+      },
+      success() {
+         return this.$store.state.success;
       }
    },
    methods: {