Zurich multiple frequency sweeps for small scans

[Jacfomg]

Store the pulse in memory and sweep using SOFTWARE instead of HARDWARE. We may run into memory limitation for big scans but it enebles to sweep different frequencies at the same time. That is why we need a threshold that I think depend on these 3 parameters.

Checklist:

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