Add missing variants for Molex_Pico-Lock

Hello,

I ran into the issue that the Molex Pico-Lock 504050 series connector is available in a number of variations, but some of the available variants are missing. As can be read in the ordering information in the following document, this type of connector is available in all circuit sizes of 2-12. That means that currently 2, 3, 9 and 11 are missing.

https://www.molex.com/content/dam/molex/molex-dot-com/en_us/pdf/datasheets/987650-9061.pdf?inline

This commit adds these variants of the Pico-Lock to the generating script.