Turbx

Dimensional mean handling (BL properties) and spectral analysis for curvilinear class datasets (CGD).

Extended curvilinear grid support and preliminary polydata dataset support

v.0.1.2
Significant performance update for `gradient()` when running on larger N-D arrays

Initial beta release to correspond to PyPI upload

- turbx is now installable with `pip` using `pip3 install --upgrade --user turbx`