Cz flux arc fix

[AdriaanRol]

Radical changes to the CZ flux pulses, made with @FKMalina .

Please do not merge, this is mostly there so I have access to a convenient diff with develop.

[coveralls]

Pull Request Test Coverage Report for Build 3744

• 536 of 541 (99.08%) changed or added relevant lines in 6 files are covered.
• 88 unchanged lines in 6 files lost coverage.
• Overall coverage decreased (-0.04%) to 35.223%

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Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
pycqed/tests/test_mw_lutman.py	100	101	99.01%
pycqed/tests/test_flux_lutman.py	241	243	99.18%
pycqed/instrument_drivers/meta_instrument/LutMans/flux_lutman.py	119	121	98.35%

Files with Coverage Reduction	New Missed Lines	%
pycqed/measurement/waveform_control_CC/qasm_compiler.py	1	82.83%
pycqed/measurement/waveform_control_CC/waveform.py	3	83.02%
pycqed/measurement/waveform_control_CC/qasm_compiler_helpers.py	8	74.16%
pycqed/instrument_drivers/meta_instrument/LutMans/flux_lutman.py	14	77.3%
pycqed/measurement/waveform_control_CC/QWG_fluxing_seqs.py	23	10.94%
pycqed/measurement/sweep_functions.py	39	22.63%

Totals
Change from base Build 3708:	-0.04%
Covered Lines:	20102
Relevant Lines:	57071

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💛 - Coveralls

[AdriaanRol]

Everything is implemented, @FKMalina is using it now in experiment.
I will write some more tests to ensure everything is working as expected and plot some figures below of the plotting methods (that still need to be updated).

[AdriaanRol]

Images generated by the flux lutman on demand now.

[fbattistel]

I've realized that the bug was not affecting the final result because we take the ratio t/scale afterwards

[AdriaanRol]

Hi @fbattistel , I'm assuming you are OK with the changes but could you (for the sake of protocol) hit the approve button?

You can find it in the review changes button in the "files changed" tab.

Please do not merge yet, this is typically done by whoever opened the pull request (PR).