IPC2581 is a modern production file exchange system. It provides
single-file data output for an entire board including BOM and netlist
information.
Fixes https://gitlab.com/kicad/code/kicad/-/issues/1954
Other changes:
- store all router settings (ROUTING_SETTINGS) in the debug dump in a separate JSON file
- store router mode (single/diff/tune) in the event log file
- factor out the regression test player and the graphical log/debug tool into separate main files
- bring CONSOLE_LOG and CONSOLE_MSG_REPORTER to the common test headers