Add "Login with NEAR"

[jlwaugh]

Building toward integration of NEAR account system for badges and other cool features!

Let users connect wallets: stats.gallery

Example from create-near-app Vue template:

https://github.com/near/create-near-app/blob/master/templates/vue/src/App.vue

Please reply with any ideas or questions 🙂

[encody]

Here's an example of about how complicated adding a "Login with NEAR" button should be: https://gist.github.com/amgando/c57d6bd64a458fc17168dbf598dd4559