New/Replacement: Kicad 5.1.4

Hello ports@,

Attached are seven new ports and one replacement port to get Kicad up to
5.1.4, from its current useless, 9-year-old state.

Does anyone have any time or interest to review these and help me get
them spiffed up? I'm having trouble on WANTLIBS for the OCE and Kicad
ports.

The OCE port:

OCE is a C++ 3D modeling library. It can be used to develop CAD/CAM softwares,
for instance FreeCad or IfcOpenShell.

OCE stands for opencascade community edition. This project aims at gathering
patches/ changes/ improvements from the OCC community. Official OCCT
documentation and sources are available at http://www.opencascade.org/, you can
also check their development portal at http://dev.opencascade.org.

The libngspice port:

Ngspice can be built as a shared library. This package provides that library.

The other kicad-* ports:

These are the required runtime ports for Kicad 5.

I've built a couple of boards with this without any failures. Some
builds and tests would be nice. Otto graciously supplied the code to fix
the stack issues.

Thanks,
Tracey

--

Tracey Emery