SMG: Encapsulate four-fold HVE filter with HVE set's #contains()
SMG: replace four-fold HVE filter with HVE set's #contains()
Introduce the new method SMGHasValueEdgeSet#getCoveringEdge.
Replace filtering by object, offset, value, bitsize with SMGHasValueEdgeSet#contains in all three places, including rewriting #contains itself using new #getCoveringEdge.
Use #contains instead of filtering by readParams.
Add a test for set's contains vs. 4-fold filter to show the behavior has not changed.
Edited by Петров Олег Максимович