Add TE Connectivity 2041021 SD card connector
This is a fixed version of https://github.com/KiCad/Connectors_TE-Connectivity.pretty/pull/2#event-1363406776, which was abandoned. All fixed requested by @poeschlr have been made.
Note: I did not see a dimension or angle for the sloped area on the right side, so I made it 45 degrees.
The pin numbers should allow mating with an existing symbol:
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