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Update NumPy C API usage for 1.x and 2.0 compatibility

Mateusz C requested to merge 588-issue into develop

Numpy 2 replaces PyArray_* macros with functions, now accepting only PyObjectArray type arguments. We introduce casting from PyObject to PyArrayObject by wrapping relevant PyArray_* calls in new to_PyArrayObject util function. For assignment of 'base' attribute, PyArray_SetBaseObject is now used.

Related: #588

Edited by Anton Joubert

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