fixed bug iq_angle and threshold in autocalibration methods and hw methods

[DavidSarlle]

Fixed bug iq_angle and threshold in autocalibration methods and hardware methods.

Checklist:

• Reviewers confirm new code works as expected.
• Tests are passing.
• Coverage does not decrease.
• Documentation is updated.

[DavidSarlle]

@aorgazf @Edoardo-Pedicillo @andrea-pasquale I have introduced the changes needed to fix threshodl and rotation angle calcultion introduced by @aorgazf in PR #308. The difference is that this PR includes the fixes in HW and autocalibration routines.
Also I have included some fitting parameters that were removed from HW routines and the reports.

I have tried allXY after running classification and now it works as expected.

[DavidSarlle]

@aorgazf thanks for fixing the bug. I have tested and it works as expected now. I have raised a PR (#311 ) that includes your fixes. But the only thing is taht we should included the fixes in HW and autocal routines (not included in this branch). So, probably, if you agree (@Edoardo-Pedicillo @andrea-pasquale @aorgazf ) we can close this branch and merge #311 in #279 wich contains all the methods refactored for autocalibration.

[DavidSarlle]

@aorgazf please note that now, the iq_angle is now calculated by default in radians to be compatible with all platform runcards, but during the autocalibration, we will convert into degrees before updating qblox runcard.

[DavidSarlle]

changes included in https://github.com/qiboteam/qibocal/tree/david/fixes_split_data_fit