Fix cirq coverage test (#779)
Fix cirq coverage test (#779)

* Fix cirq coverage test

- Add additional parameter to ignore gates that do not decompose
into cirq native gates (such as fermionic quartic gates).

* Support both 0.12 and 0.14

* Formatting

* Coverage

* Formatting

* coverage ignore typerror

* formatting

* format again

* one more coverage line.

* format again.
quantumlib/OpenFermion,kevinsung/OpenFermion,kevinsung/OpenFermion,quantumlib/OpenFermion,kevinsung/OpenFermion,quantumlib/OpenFermion