es5-shim: Add polyfill for Object.create

Follows-up fff9a814f2327eb. Per the OOjs readme, it requires:

> (..) parser compatibility with ES3 engines.
> To support ES3 engines, ensure an appropriate polyfill is
> loaded for these methods:
> * Array.isArray
> * Object.create (basic use only)
> * Object.keys
> * JSON.stringify

The es5-shim and oojs modules already provide JSON, and most
Array and Object methods. Except for Object.create because there
are a few features in it that can't be emulated, and hence
es5-shim refuses to ship the polyfill for it.

Bug: 67590
Change-Id: I4838d78f77a3a71f80e6750adb914213b5ca4df5
Merge "es5-shim: Add polyfill for Object.create"