Introduce Stream api into Delegator

[Voiteh]

Delegator currently can handle only execution for single Source ->Type objects. As Delegator do not returns component but simply delegates execution to other components, there should be a way to provide ability for Delgator to execute transformation on streams of object of same type. This way we would reduce amount of components of iterables and sligtly improve performance for generic operations which operates on different attributes (we could filter them out and execute transformation on all of them which reduces amount of finding of specific components). This way we possibly may find a way to remove finding algorithms all togather.