Fix Target Entity Lock

Fix Target Entity Lock

This fix enables the pdp to stop events with
different requestId's/controlLoopNames from
being processed if the target entity specified is
already being processed by another event/controlloop.

The lock timeout rule is removed to stop the event from
waiting to obtain a lock if it was not already required.

Handling of the lock denied case is taken care of in the
event manager rule instead of in a seperate rule to avoid
further unneccessary computation.

A new control loop test case was created that is for testing
general control loop errors. The test case included is for
testing that the lock will deny a request with a duplicate
target entity.

Issue-ID: POLICY-341
Change-Id: Ib62286eff74ec22b2c645f32f385cb331fb1dff3
Signed-off-by: Daniel Cruz <dc443y@att.com>