Added Traco TEA1E series

Hi everyone 🙂,

Another series for you to check and merge. TEA1E only contains one model.

Footprint Generator MR: kicad-footprint-generator!921 (merged)

Footprint MR: kicad-footprints!3262 (merged)

Datasheet URL: https://www.tracopower.com/products/tea1e.pdf

The KLC-Checker did not throw any errors.

Cheers, Jens