Added Transformer_Triad_VPP16-310
Datasheet: https://catalog.triadmagnetics.com/Asset/VPP16-310.pdf
Symbol merge request: kicad-symbols!4504 (merged)
Datasheet: https://catalog.triadmagnetics.com/Asset/VPP16-310.pdf
Symbol merge request: kicad-symbols!4504 (merged)