Support of equality in Circuit and Lattice classes

[isolatedinformation]

Writing tests involves assert statements. Right now, if we compare two objects for equality, it returns False. By default, Python object identifiers for comparison operations. The classes that need to support equality are:

in lsqeccc/pauli_rotations:

• circuit.PauliOpRotation
• rotation.PauliProductOperation
• rotation.PauliRotation
• rotation.Measurement

in lsqecc/logical_lattice_ops:

• llops.LogicalLatticeOperation and associated child classes
• llops.LogicalLatticeComputation

This thread has insights on implementing equality features.

[alexnguyenn]

I will handle pauli_rotations/ stuffs but @gwwatkin can you look at logical_latice_ops/?

[gwwatkin]

@alexnguyenn I can of course, but my understanding was that @isolatedinformation was going to handle this

[alexnguyenn]

Added equalities for PauliRotation and Measurement. There is no need for PauliOperator (being an Enum) and PauliProductOperation (being an Abstract Base Class - although I will need to rewrite that class a little bit)

[gwwatkin]

@isolatedinformation is writing tests he'll decide if llops still need equality

[isolatedinformation]

1. Llops does not need equality. Because we have already verified in Circuit if the ops are equal. Since equality is already implement for Circuit and Rotation classes, and llops attributes are composed of objects from these any assertion that needs to be made can exploit these inbuilt equalities.
2. I don't see the end-user working with the internal details of llops, except for instantiating a LogicalLatticeComputation object. Everything else is internal and a good chunk of llops tests have already been written without need for equality.

[gwwatkin]

Sounds good, @isolatedinformation. I agree