Added
- type annotations
- `swgo.psa.upsample`
- `swgo.psa.differentiate`
- `swgo.psa.deconvolve_pole_zero`
Changed
- make `swgo.psa.adaptive_centroid` work for lists as well
Fixed
- return value of `swgo.psa.adaptive_centroid` was of type `int` (via `peak_index`) on malformed inputs
- upload of dev versions to TestPyPi