added script to generate DIP-package library (including SMD and sockets)
Created by: jkriege2
script was used for this PR: https://github.com/KiCad/Housings_DIP.pretty/pull/3
Edited by Joel Guittet
Created by: jkriege2
script was used for this PR: https://github.com/KiCad/Housings_DIP.pretty/pull/3