Fastcomtec get sweeps

[NicolasStaudenmaier]

Get the current number of sweeps and runtime of the FastComtec MCS6 while running a measurement.

Description

The FastComtec counter model MCS6 has the possibility to read the number of sweeps and runtime when a measurement is performed. This has not been implemented so far and is added with this PR.

Motivation and Context

The info_dict when getting the data trace returns None. Also when the measurement is saved the information about the elapsed sweeps will not be saved. By simply querying the sweeps and runtime of the fastcounter the values are available for the user especially once the measurement is saved.

How Has This Been Tested?

Tested on my setup with real hardware MCS6A.

Screenshots (only if appropriate, delete if not):

Types of changes

• [ ] Bug fix
• [x] New feature
• [ ] Breaking change (Causes existing functionality to not work as expected)

Checklist:

• [x] My code follows the code style of this project.
• [x] I have documented my changes in /docs/changelog.md.
• [ ] My change requires additional/updated documentation.
• [ ] I have updated the documentation accordingly.
• [ ] I have added/updated the config example for any module docstrings as necessary.
• [x] I have checked that the change does not contain obvious errors (syntax, indentation, mutable default values, etc.).
• [ ] I have tested my changes using 'Load all modules' on the default dummy configuration.
• [ ] All changed Jupyter notebooks have been stripped of their output cells.

[rmgonzal]

I tested with my setup FastComtec MCS6 and it works (saved measurement with info_dict = {'elapsed_sweeps', 'elapsed_time'}) also the values are available in the PulsedMeasurementGui rather than -1. @timoML Could you check this with your hardware?