Add license, readme and composer.json for stubs [skip ci]

We need this to `git subsplit` stubs to let users require stubs with composer easily

Author: pinepain

LICENSE

@@ -1,6 +1,6 @@
 The MIT License
 
-Copyright (c) 2016 Bogdan Padalko <[email protected]>
+Copyright (c) 2015-2016 Bogdan Padalko <[email protected]>
 
 Permission is hereby granted, free of charge, to any person obtaining a copy of
 this software and associated documentation files (the "Software"), to deal in

stubs/LICENSE

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+The MIT License
+
+Copyright (c) 2015-2016 Bogdan Padalko <[email protected]>
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the "Software"), to deal in
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
+of the Software, and to permit persons to whom the Software is furnished to do
+so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

stubs/README.md

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+# Stub files for [php-v8](https://github.com/pinepain/php-v8) PHP extension
+
+This is a git subtree split of [php-v8](https://github.com/pinepain/php-v8) extension stub files.
+
+**All issues and pull-requests should be submitted to the original [php-v8](https://github.com/pinepain/php-v8) repository.**
+
+
+## Installation
+
+If you are also using Composer, it is recommended that you add the [php-v8-stub](https://github.com/pinepain/php-v8-stubs)
+package as a dev-mode requirement. This provides skeleton definitions and annotations to enable support for auto-completion
+in your IDE and other code-analysis tools.
+
+    composer require --dev pinepain/php-v8-stubs
+
+
+## License
+
+Copyright (c) 2015-2016 Bogdan Padalko <[email protected]>
+
+[php-v8](https://github.com/pinepain/php-v8) PHP extension is licensed under the [MIT license](http://opensource.org/licenses/MIT).

stubs/composer.json

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+{
+  "name": "pinepain/php-v8-stubs",
+  "type": "library",
+  "description": "Stub files for pinepain/php-v8 php extension",
+  "keywords": ["dev", "stub", "php-v8", "v8", "js", "javascript"],
+  "homepage": "https://github.com/pinepain/php-weak-stubs",
+  "license": "MIT",
+  "authors": [
+    {
+      "name": "Bogdan Padalko",
+      "email": "[email protected]",
+      "homepage": "https://github.com/pinepain"
+    }
+  ],
+  "require": {
+    "php": "~7.0"
+  }
+}