Sprit

Calibration now working with power law regression

**Full Changelog**: https://github.com/RJbalikian/SPRIT-HVSR/compare/v2.2...v2.3

- Fixes to CLI (and make it so it only reads non-default parameters)

**Full Changelog**: https://github.com/RJbalikian/SPRIT-HVSR/compare/v2.0...v2.2

Minor fixes to plot_cross_section

**Full Changelog**: https://github.com/RJbalikian/SPRIT-HVSR/compare/v2.1-dev...v2.1.1-dev

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

- Update to html/pdf reports (include hvsr_id)
- HTML/PDF reports now work on linux and windows

**Full Changelog**: https://github.com/RJbalikian/SPRIT-HVSR/compare/v1.4.2...v1.4.3