Implementation of modified version of hobbs algorithm

@linas  It's still in progress, but it can do some basic resolutions right now, see Readme file for details.

Writing unit tests is a good idea. My idea is to prepare a list of testing sentences, parse them, run  
hobbs agent and compare it's results with expected results so that we don't need to keep atomspace data.

There is a small problem, the unit tests require  parsed results from relex server, should I start relex server in the unit tests?