add classical division to register operation in the conversion from pytket to qir

[cqc-melf]

Currently the division is not supported in the classical operation. Check with the hardware and add this to the conversion. See for exmple:

https://github.com/CQCL/pytket-quantinuum/blob/0f7b5fc70298047d24dd569d16e31203349d0ae6/tests/integration/backend_test.py#L404

Currently there is no support for division in pyqir, so this would need to be added with a custom function as well. (see discussion at qir-alliance/pyqir#165 / qir-alliance/pyqir#282)