pcb-4.3.0 released

Written for pcb by Bert Timmerman on 2021-03-01

Dear Users,

This is a feature release (no pcb file format change).

This is a feature release as the footprint file format now allows for
stating the pad center and length, width parameters. This is in addition
to the existing footprint format. pcb parses both definitions.

Kind regards,

The pcb development team.