Undesirable side effects of keyboard interrupt handling implementation

• Quantify-core version: 0.7.6
• Quantify-scheduler version (or n/a):
• Python version: 3.10
• Python install method (anaconda/virtualenv/other?): venv
• Operating System: W10 Enterprise 10.0.19045

Description

1. Executing MeasurementControl.run() outside the main thread -> call to signal.signal raises an exception.
2. Executing MeasurementControl.run() with my own interrupt handler installed for SIGINT -> after execution of run the default interrupt handler for SIGINT is installed instead of my own.

I will try to come up with an MR.

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