Create matchers in requests

Create matchers in requests

Pass WorkersManager and JobsManager to requests. They are required
to control workers and jobs by matchers.
Create timeRequests time events monitors for ValidAfter, Deadline
and Timeout events and creates matchers for handling them.
Update timeRequests after creation and changing pending requests.

Update tests to fit changes in code.

As tests required usage of WorkersManager, a mockup type
MockWorkersManager has been generated using following command:

mockgen	-package requests \
	-destination=requests/workersmanager_mock_test.go \
	-write_package_comment=false \
	git.tizen.org/tools/boruta/matcher WorkersManager

Change-Id: Id6bbcf650859e27e137d462a11540589a3620385
Signed-off-by: Lukasz Wojciechowski <l.wojciechow@partner.samsung.com>