don't display 'werner" indicators for states larger than 2 qubits #5
Description
We should change DensityMatrixView such that it can accept "null" as isWerner. In this case it shouldn't display and Werner or Non-werner indicator.
This should be used when DensityMatrixView is used to view states of more than 2 qubits, i.e in the 'cnot' step. Make sure the null value is passed when it should from ensambleDisplay.