tools: move eslint from tools to tools/node_modules

This is required because we need to add the babel-eslint dependency
and it has to be able to resolve "eslint".
babel-eslint is required to support future ES features such as async
iterators and import.meta.

Refs: https://github.com/nodejs/node/pull/17755
PR-URL: https://github.com/nodejs/node/pull/17820
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com>

1 files changed, 81 insertions, 0 deletions

diff --git a/tools/node_modules/eslint/node_modules/extend/README.md b/tools/node_modules/eslint/node_modules/extend/README.md
new file mode 100644
index 0000000000..5b8249aa95
--- /dev/null
+++ b/tools/node_modules/eslint/node_modules/extend/README.md
@@ -0,0 +1,81 @@
+[![Build Status][travis-svg]][travis-url]
+[![dependency status][deps-svg]][deps-url]
+[![dev dependency status][dev-deps-svg]][dev-deps-url]
+
+# extend() for Node.js <sup>[![Version Badge][npm-version-png]][npm-url]</sup>
+
+`node-extend` is a port of the classic extend() method from jQuery. It behaves as you expect. It is simple, tried and true.
+
+Notes:
+
+* Since Node.js >= 4,
+  [`Object.assign`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/assign)
+  now offers the same functionality natively (but without the "deep copy" option).
+  See [ECMAScript 2015 (ES6) in Node.js](https://nodejs.org/en/docs/es6).
+* Some native implementations of `Object.assign` in both Node.js and many
+  browsers (since NPM modules are for the browser too) may not be fully
+  spec-compliant.
+  Check [`object.assign`](https://www.npmjs.com/package/object.assign) module for
+  a compliant candidate.
+
+## Installation
+
+This package is available on [npm][npm-url] as: `extend`
+
+``` sh
+npm install extend
+```
+
+## Usage
+
+**Syntax:** extend **(** [`deep`], `target`, `object1`, [`objectN`] **)**
+
+*Extend one object with one or more others, returning the modified object.*
+
+**Example:**
+
+``` js
+var extend = require('extend');
+extend(targetObject, object1, object2);
+```
+
+Keep in mind that the target object will be modified, and will be returned from extend().
+
+If a boolean true is specified as the first argument, extend performs a deep copy, recursively copying any objects it finds. Otherwise, the copy will share structure with the original object(s).
+Undefined properties are not copied. However, properties inherited from the object's prototype will be copied over.
+Warning: passing `false` as the first argument is not supported.
+
+### Arguments
+
+* `deep` *Boolean* (optional)
+If set, the merge becomes recursive (i.e. deep copy).
+* `target`	*Object*
+The object to extend.
+* `object1`	*Object*
+The object that will be merged into the first.
+* `objectN` *Object* (Optional)
+More objects to merge into the first.
+
+## License
+
+`node-extend` is licensed under the [MIT License][mit-license-url].
+
+## Acknowledgements
+
+All credit to the jQuery authors for perfecting this amazing utility.
+
+Ported to Node.js by [Stefan Thomas][github-justmoon] with contributions by [Jonathan Buchanan][github-insin] and [Jordan Harband][github-ljharb].
+
+[travis-svg]: https://travis-ci.org/justmoon/node-extend.svg
+[travis-url]: https://travis-ci.org/justmoon/node-extend
+[npm-url]: https://npmjs.org/package/extend
+[mit-license-url]: http://opensource.org/licenses/MIT
+[github-justmoon]: https://github.com/justmoon
+[github-insin]: https://github.com/insin
+[github-ljharb]: https://github.com/ljharb
+[npm-version-png]: http://versionbadg.es/justmoon/node-extend.svg
+[deps-svg]: https://david-dm.org/justmoon/node-extend.svg
+[deps-url]: https://david-dm.org/justmoon/node-extend
+[dev-deps-svg]: https://david-dm.org/justmoon/node-extend/dev-status.svg
+[dev-deps-url]: https://david-dm.org/justmoon/node-extend#info=devDependencies
+