Major updates:
* The generate_ppsds() function updated to generate_psds() function (older retained for compatibility)
* New noise removal method (moving standard deviation / total standard deviation)
* Raw fft now supported (no instrument response needed) and used by default
* Obspy PPSD calculates still supported using the osbpy_ppsds=True in the generate_psds() function
* FIXED: The processing_parameters attribute (dict) was overwriting generate_psds() during process_hvsr and not recording process_hvsr (fixed)
* Changed name of detrend_order to detrend_options for more flexibility (fetch_data())
* Added filter_type and filter_options parameters to fetch_data() (uses obspy.Stream.filter())
Minor udpates:
* Changes to verbose outputs (esp. of remove_noise())
* Updated documentation
What's Changed
* Raw_fft by RJbalikian in https://github.com/RJbalikian/SPRIT-HVSR/pull/44
**Full Changelog**: https://github.com/RJbalikian/SPRIT-HVSR/compare/v1.4.3...v2.0