Detprocess

Fix issue getting OF base class

Add OF low frequency chi2 feature (Maggie)

Change overall code structure to use OF base class, noise HDF5 files, and new configuration file format

What's Changed
* Update detprocess for use with iminuit>=2 by slwatkins in https://github.com/spice-herald/detprocess/pull/3
* Add ability to develop new features quickly via an external file by slwatkins in https://github.com/spice-herald/detprocess/pull/5


**Full Changelog**: https://github.com/spice-herald/detprocess/compare/v0.1.0...v0.2.0

What's Changed
* Adding core functions for analyzing extracted features by slwatkins in https://github.com/slwatkins/detprocess/pull/2


**Full Changelog**: https://github.com/slwatkins/detprocess/compare/v0.0.2...v0.1.0