Rework: Relay: Derive ADW11 from a KLC G3.1 base symbol

This is a rework of the Panasonic ADW11 latching SPST relay to use a KLC G3.1 base symbol with EN50005 numbering (though the ADW11 is used as a G3.1 example, the unit in the library is not actually compliant!)

• A1 - S+ pin
• A2 - R+ pin
• 13 - common contact
• 14 - NO contact

Datasheet (new URL): https://api.pim.na.industrial.panasonic.com/file_stream/main/fileversion/270

First, create a generic symbol Relay_SPST_Latching_1coil which can be the base of other similar units:

Then derive the ADW11 from that:

This also changes the footprint name (and some other changes in the footprint).

KLC errors

• Relay_SPST_Latching_1coil:
  • S4.5 (missing pins) - the checker doesn't understand EN50005 numbering yet
  • S5.1 - no default footprint - this is a generic base part
• ADW11:
  • S5.1 - no footprint - this is pending merge

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FP MR: kicad-footprints!3406 (merged)