Calculix 2.22 and now 2.23 available

[stefano2734]

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Calculix 2.23, 2.22 and 2.21 have some improvements and less bugs to now supported 2.20.

http://www.dhondt.de/new_calc.htm

perhaps some changes in precice are needed or useful.

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Test version 2.23 with precice calculix examples.

some changes are needed to use this new features.

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Additional context
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Update to 2.21 is perhaps first step.