bugfixes, clean up

pulse_lib/__pycache__/base_pulse.cpython-37.pyc

pulse_lib/__pycache__/keysight_fx.cpython-37.pyc

pulse_lib/segments/__pycache__/data_classes.cpython-37.pyc

...gments/__pycache__/data_handling_functions.cpython-37.pyc

pulse_lib/segments/__pycache__/looping.cpython-37.pyc

pulse_lib/segments/__pycache__/segments.cpython-37.pyc

pulse_lib/segments/__pycache__/segments_IQ.cpython-37.pyc

pulse_lib/segments/__pycache__/segments_base.cpython-37.pyc

pulse_lib/segments/data_classes.py

pulse_lib/segments/data_handling_functions.py

pulse_lib/segments/looping.py

pulse_lib/segments/segments.py

pulse_lib/segments/segments_IQ.py

pulse_lib/segments/segments_base.py

test.py