Merge pull request #84 from johbackm/dev

LEO fits tweaks for large data sets when every possibility will occur.

Merge pull request #75 from jtgasparik/scattering_derivative

Central difference scheme for the derivative of the scattering signal

Merge pull request #73 from rcjackson/v170

VER: 1.7.0 + CI to Python 3.14

Merge pull request #74 from rcjackson/v170

FIX: Upgrade PySP2 artifacts in GitHub Actions.

Merge pull request #74 from rcjackson/v170

FIX: Upgrade PySP2 artifacts in GitHub Actions.

Merge pull request #68 from rcjackson/read_hk_fix

VER: 1.6.0

Merge pull request #65 from rcjackson/read_hk_fix

VER: 1.5.1

Merge pull request #59 from rcjackson/v150

ADD: Version 1.5.0

REL: PySP2 version 1.3.5.

PySP2 Release Version 1.3.4