Ffta

Features added
* Nonstationary Fourier Mode Decomposition (NFMD)
* Impulse response/deconvolution in frequency response
* Correct tests and documentation
* Calibration curve via simulation for correcting t_FP images

Bug fixes
* Plotting bugs
* Removed Pycroscopy dependency
* Added PyTorch dependency for NFMD
* GKPixel (G-Mode SKPM) Bug fixes

* Minor changes to imports
* Added version

* Added NFMD to main code
* Fixed calibration curve functionality to simulation.calibration_curve to generate a scaling between measured time constant and expected
* Fixed tests
* A few related bug fixes

* Several bug fixes
* Updated requirements
* Started documentation and tests but LONG way left to go :\

Future
* Adding Daniel Shea's NFMD code: https://github.com/sheadan/NFMD-ExtractionInstantaneous/tree/master/nfmd
* Further tests/documentation

* Fixed Pixel and GKPFM code
* Updated GKPFM Process class
* Fixed some dependencies due to Sidpy change

* Updated requirements to add [SidPy](https://github.com/pycroscopy/sidpy)
* Added initial [documentation](https://ffta.readthedocs.io/en/latest/), still a work in progress!
* Some major bug fixes to GKPFM analysis side
* Other minor bug fixes and quality of life changes