[CQT-115] PEP8 naming

[GuyPuts]

Implements PEP8 styling convention, except for function names

[elenbaasc]

Hi Guy, thanks for looking at this.

Note that the pep8-naming option needs to be uncommented in the options of [tool.ruff.lint] in pyproject.toml, and then ruff needs to be run again (poetry run ruff check) to see if everything conforms to the pep8 naming standard.

To ignore pep8 naming (for instance for the gate names) you can add the noqa (no quality assurance) directive followed by the type (code) of ruff error to ignore, e.g.,
def H(q: QubitLike) -> BlochSphereRotation: # noqa: N802
Note that there are two spaces before the # and one space after (otherwise ruff format will complain) and that you need to run ruff to determine the codes (above is N802, to ignore Function names that should be lowercase.)

Acceptance criteria of ticket have not been met yet.