Sort imports and requires (#3056)

This will definitely save time, and ensure more uniformity.

It moves the `createServiceTester()` calls to a different place from where I'd like them, though I'm happy to have them checked by the linter.

Closes #2701

services/continuousphp/continuousphp.tester.js

@@ -2,7 +2,6 @@
 
 const Joi = require('joi')
 const { isBuildStatus } = require('../../lib/build-status')
-
 const t = (module.exports = require('../tester').createServiceTester())
 
 t.create('build status on default branch')