Add shield pads
The current FP has an error. Two of the pins are actually connected to the metal enclosure. This PR makes them 'shield' pins.
All contributions to the kicad library must follow the KiCad library convention
Thanks for creating a pull request to contribute to the KiCad libraries! To speed up integration of your PR, please check the following items:
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Provide a URL to a datasheet for the footprint(s) you are contributing -
An example screenshot image is very helpful -
If there are matching symbol or 3D model pull requests, provide link(s) as appropriate -
Check the output of the Travis automated check scripts - fix any errors as required -
Give a reason behind any intentional library convention rule violation.
https://katalog.we-online.de/pbs/datasheet/7499010121A.pdf
A symbol PR will follow.