The pin name defined in Eeschema is now available as pad info.
Useful for the board designer (the pin function is displayed in the message panel).
Needed for the Gerber P&P files.
- Previously a warning was generated even for not connectable pads
(pads not on copper layers or without pad name).
- The test is now optional and is disabled by default.
(pads without corresponding pin is schematics are a frequent case)
Fixes: lp:1852444
https://bugs.launchpad.net/kicad/+bug/1852444