first impl for household editor

src/Bundle/ChillPersonBundle/Resources/public/vuejs/HouseholdMembersEditor/App.vue

@@ -0,0 +1,23 @@
+<template>
+  <concerned></concerned>
+</template>
+
+<script>
+import Concerned from './components/Concerned.vue';
+import { mapState } from 'vuex';
+
+export default {
+  name: 'App',
+  components: {
+    Concerned,
+  },
+  computed: {
+    // for debugging purpose
+    // (not working)
+    //...mapState({
+    //  'concerned', 'household', 'positions'
+    //  })
+  }
+}
+
+</script>