Add autocomplete topic (#1)

Author: RasPhilCo

packages/heroku-cli-autocomplete/CODEOWNERS

@@ -0,0 +1 @@
+* @heroku/cli

packages/heroku-cli-autocomplete/src/commands/ac.js

@@ -0,0 +1,12 @@
+// @flow
+import {Command} from 'cli-engine-heroku'
+
+export default class extends Command {
+  static topic = 'ac'
+  static description = 'ac'
+  static hidden = true
+
+  async run () {
+    this.out.debug('ac present')
+  }
+}

packages/heroku-cli-autocomplete/src/commands/hello.js

@@ -4,8 +4,9 @@ import fs from 'fs-extra'
 import path from 'path'
 
 export const topic = {
-  name: 'hello',
-  description: 'says hello (example plugin)'
+  name: 'ac',
+  description: 'manage cli autocompletion',
+  hidden: true
 }
 
 let dir = path.join(__dirname, 'commands')