Added WeMOS S2 mini

I added a symbol for the WeMOS S2 mini

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"Datasheet": https://www.wemos.cc/en/latest/s2/s2_mini.html
MCU datasheet: https://www.espressif.com/sites/default/files/documentation/esp32-s2_datasheet_en.pdf

• Ensure that the associated footprints match the official footprint library
  • A new fitting footprint must be submitted if the library does not yet contain one.
• Check the output of the automated check scripts - fix any errors as required
• Give a reason behind any intentional library convention rule violation.

Pin numbering have been chosen to be compatible with the WeMOS D1 mini lite. I have not added this as a footprint filter, but considered it. Should that be added? The module is specifically made to be compatible

Pins are broken in to 4 blocks. Outer pins on the left (compatible with D1) and inner pins on the right

footprint MR: kicad-footprints!2904

Default look:

Longest alternate pin names: