Add /CYCEXPAND APDL command.

[mikerife]

Description of the feature

This APDL command is missing from PyMAPDL and is not listed as a non-supported command. It is needed for non modal cyclic symmetry analyses (i.e. VM 246).

Steps for implementing the feature

Implement in usual manner?

Useful links and references

https://ansyshelp.ansys.com/account/secured?returnurl=/Views/Secured/corp/v212/en/ans_cmd/Hlp_C_CYCEXPAND_sl.html