added argumentparser.py
Added lib.core.Controller.py
Refactoring: Move methods0 to Controller
Added __str__, __int__ and __eq__ to lib.connection.Response
Fixed bug in lib.core.Response.py
Added decode method in lib.core.Requester
Modified lib.search.GoogleSearch to use lib.connection.Requester
Small refactoring
Added lib.search.BaseSearch.py
refactoring and added filter by numeric
Fixed some bugs