add vue-ip-input (vuejs#1051)

README.md

@@ -728,6 +728,7 @@ Tooltips / popovers
  - [vue-longpress](https://github.com/javisperez/vuelongpress) - A VueJS (2.x) button component that requires you to keep pressing to confirm a given action.
  - [vue-embed](https://github.com/Gomah/vue-embed) - Embed component is based on embed.js for Vue 2.x, a component that embeds emojis, media, maps, tweets, gists, code, services and markdown.
  - [vue-google-autocomplete](https://github.com/olefirenko/vue-google-autocomplete) - A Vue.js (2.x) autosuggest component for the Google Maps Places API.
+ - [vue-ip-input](https://github.com/lakb248/vue-ip-input) - An ip input component for Vue.js 2.x