Nionswift-usim

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- Ensure noise gets added as float32 to ensure good display performance.

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- Fix scaling of spectra to be consistent with beam current, sample thickness, and energy offset.
- Improve performance for cameras.
- Add support for ZLP tare control / inform.
- Add controls used in 4D acquisition.
- Change Ronchigram units to radians.
- Improve/fix reliability with camera running faster than scan.

Contributors: Brow71189 cmeyer

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- Fix issue with scan content position (introduced with rotated scans).

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- Fix minor issue with EELS data.

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- Update support for API.
- Add support for rotated scans.

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- Specify lower priorities for all simulator devices.
- Add persistence of camera settings.
- Restructure as a camera module to be parallel with physical camera modules.
- Switch to using calibration controls instead of intrinsic calibrations.