[MacPorts] #57761: netgen: add opencascade variant

[MacPorts]

#57761: netgen: add opencascade variant
--------------------------+---------------------------------
  Reporter:  mbrethen     |      Owner:  MarcusCalhoun-Lopez
      Type:  enhancement  |     Status:  assigned
  Priority:  Normal       |  Milestone:
 Component:  ports        |    Version:  2.5.4
Resolution:               |   Keywords:
      Port:  netgen       |
--------------------------+---------------------------------
Changes (by mbrethen):

 * Attachment "Portfile" added.


-- 
Ticket URL: <https://trac.macports.org/ticket/57761>
MacPorts <https://www.macports.org/>
Ports system for macOS