Additional PCB/Electronics samples for LibrePCB & Horizon-EDA

[hoijui]

So far, it is only for KiCad

LibrePCB

https://librepcb.org/

(C++, Python)

*.lp, *.lpp, .librepcb-project

sample project: https://github.com/gfroerli/hardware-v2/

Horizon-EDA

https://horizon-eda.org/

(C)

*.hprj

sample project: https://github.com/carrotIndustries/x-band-tx