Support explicit jumper symbols, defined either by a
flag that all pins with the same number are connected,
or by explicit groups of jumpered pins
Fixes https://gitlab.com/kicad/code/kicad/-/issues/2558
- Adds Component Class field to SCH_DIRECTIVE_LABEL
- Adds SCH_SYMBOLs to SCH_RULE_AREA item lists
- SCH_SYMBOLs resolve Component Class directives
- Netlist exporter / importer handles Component Class names
- Adds DRC expressions and functions
- Adds QA check for component class netlist export
Previously disambiguation was looking for exact matches,
but vector buses are permitted to have different ranges and
still participate in merging, so they need to be disambiguated.
Fixes https://gitlab.com/kicad/code/kicad/-/issues/5925
Mike Williams
Jon Evans
JamesJCode
jean-pierre charras
Wayne Stambaugh