Noncollinear SIC corrections
Description
Implement the noncollinear ADSIC and PZ-SIC as defined in Tancogne-Dejean, Lüders, and Ullrich, J. Chem. Phys. 159, 224110 (2023). Also fixes some bugs in the SIC code.
Checklist
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I have checked that my code follows the Octopus coding standards -
I have added tests for all the new features added in this request.
Edited by Nicolas Tancogne-Dejean