feat: initial CLI structure

- init: create plugin boilerplate
- install: install from local path with deps
- list: show installed plugins
- validate: check manyplug.json syntax

node_modules/fs-extra/lib/move/index.js

@@ -0,0 +1,7 @@
+'use strict'
+
+const u = require('universalify').fromPromise
+module.exports = {
+  move: u(require('./move')),
+  moveSync: require('./move-sync')
+}