Adapt to using the circuit arithmetics library (qiskit-community/qiskit-aqua#895)

* convert comparator to circuit

* move first arithmetic circuits to terra

- fixed value comparator
- linear rotation
- polynomial rotation

* refactor pw linrot and weighted sum op

* fix wrong num of qubits

if ther ancilla register is too long it must be truncated to the required number of ancillas, otherwise circuit.append complains

* name args

* fix renamings to PauliRotations

* fix renaming to integer_comparator

* fix case of too many ancillas

* fix copyright

* add deprecation warning filters on tests

* add note to changelog

* gci to use circuit lib

* european call delta to use circ lib

* pwl objective to use circuit lib + fix lint

* european call to use circuit lib + fix lint

* add rangle and mapsto to pylintdict

Co-authored-by: Manoel Marques <[email protected]>

Author: Cryoris

test/finance/test_amplitude_estimation.py

@@ -22,8 +22,8 @@
 from qiskit.aqua import QuantumInstance
 from qiskit.aqua.components.uncertainty_models import (LogNormalDistribution,
                                                        MultivariateNormalDistribution)
-from qiskit.finance.components.uncertainty_problems import \
-    (EuropeanCallDelta, FixedIncomeExpectedValue)
+from qiskit.finance.components.uncertainty_problems import (EuropeanCallDelta,
+                                                            FixedIncomeExpectedValue)
 from qiskit.aqua.components.uncertainty_problems import \
     UnivariatePiecewiseLinearObjective as PwlObjective
 from qiskit.aqua.components.uncertainty_problems import UnivariateProblem