add SelectableRow component

src/components/selectable_row/selectable_row.js

@@ -0,0 +1,16 @@
+import Checkbox from '../checkbox/checkbox.js'
+
+const SelectableRow = {
+  components: {
+    Checkbox
+  },
+  props: ['checked'],
+  data () {
+  },
+  computed: {
+  },
+  methods: {
+  }
+}
+
+export default SelectableRow

src/components/selectable_row/selectable_row.vue

@@ -0,0 +1,10 @@
+<template>
+  <div>
+    <Checkbox v-model="checked" />
+  </div>
+</template>
+
+<script src="./selectable_row.js"></script>
+
+<style lang="scss">
+</style>