Add TimeoutMatcher with tests

Add TimeoutMatcher with tests

TimeoutMatcher is a Matcher interface implementation for handling
running requests timeouts caused by expiration of requests' job timeout.

It tries to run Close on all reported requests. Some of the timeouts
might be invalid, because the request has changed it's state to done
or failed.

Tests base on using MockRequestsManager for mocking up RequestsManager
interface.

Change-Id: I6540ab50eb84f8ab1b9737ad71e7ae3a5ddd3170
Signed-off-by: Lukasz Wojciechowski <l.wojciechow@partner.samsung.com>