[TIMOB-18586] TiAPI: Create Node-compatible http module API

It'd be useful to create equivalents of some of the core Node modules in Titanium so that users could port/re-use node codebases on mobile devices. Some of the more common modules could map relatively easily to devices, and would be worth investigating. http://nodejs.org/api/http.html Some of the http module - specifically the http client - could map to similar APIs as our existing docs.appcelerator.com/titanium/3.0/#!/api/Titanium.Network.HTTPClient