chore(cleanup): update and make the tests pass

[toutpt]

Hi !

So FYI I have decided after more than a month without any news to fork it.
You will find a first release which correspond to this PR https://github.com/toutpt/module-to-cdn/releases/tag/v3.2.0

And here is the package: https://www.npmjs.com/package/@talend/module-to-cdn

This release is the first one as a fork of module-to-cdn.

Main idea is to leverage a CDN in current modern build tools.
This module is the first step.

Features added:

• remove some useless dot files
• add support for a var (global) that is changed (this is the case for history and rxjs
• merge back all PRs while fixing the tests (ag-grid, d3, bootstrap, aframe)
• configure resolution url to plug other CDN (private / companies)
• remove unpkg from the modules.json file

Fix:

• update all dependencies and dev dependencies
• add package-lock.json This is import to track security issues and ensure an install can be reproduced.
• Make all tests passed (updating all existing libs)

Chore:

• Tests: ensure next can be unsupported without braking the tests
• keep only nodejs lts versions, 10 && 12 (last version of ava do not work with node prior to 10)
• add LIMIT env var for the tests so you can focus on one module
• add axios-retry so if a request fail during the test it will retry 3 times
• Improve CI by adding cache so tests are runned in less than a minutes and are far more consistents