Add special interface object (AggRes) between aggregate and reshandlers.

It makes possible to incapsulate aggresults implementation and format
details. Access to various parametrs are made through methods of class.
Implementation of class: combaine/common/interfaces/aggresult.py

Also remove multitimes ability in results. No one need it. In future
I'll rewrite all agregators and parsing to "one second result". It makes
code simpler for developing plugins.