Fix cz in transpiler (#558)
* experimental implementation for testing purposes
* added draft implementation
* added unit tests
* added changelog
* fix unit tests
* fix code quality check
* fix documentation
* add support for wait gates in circuit transpilation
* added documentation for wait gate in gate_decompositions
* fixed bug with None values in options
* add explanation for option method in gate_event_settings.post_init
* merge with main
* merge with main
* fix code quality complains
* fix test coverage
* fix test coverage
* fix test coverage
* add cz to data
* add 2q gate with spaces in test.data runcard to fix codecov
* add flipped cz to test_optimize_transpilation
