Add support for qir.v1 input data format for cirq Targets #650
Description
Feature Request: It would be great if we could extend the azure.quantum.cirq.targets.Target with a QirTarget (or similar) sub-class that supports the qir.v1 input data format in the same way that the azure.quantum.qiskit.backends.AzureBackendBase is extended by the AzureQirBackend