KiCad 10 migration
* [ ] Update KLC: items tracked in sub-issue https://gitlab.com/kicad/libraries/klc/-/issues/46
* [x] Footprint-Generator should support the new features
* [x] https://gitlab.com/kicad/libraries/kicad-footprint-generator/-/merge_requests/2018
* [x] https://gitlab.com/kicad/libraries/kicad-footprint-generator/-/merge_requests/2020
* [ ] Symbol generator should export unpacked libraries
* [x] `from_csv_generator` only makes one symbol, so its already 'unpacked'
* [ ] It might be possible to add a 'save unpacked' function to `kicad_sym.py` so we don't need to make any real changes to the generators
* [ ] `R_Network`
* [ ] `STM32`
* [ ] `SW_DIP`
* [ ] `connector`
* [ ] `avr_da_db` is legacy code that should have never been merged, better delete it?
* [x] Unpack symbols in the master branch (https://gitlab.com/kicad/libraries/kicad-symbols/-/merge_requests/5404)
* [ ] Make CI work with v10 symbols and footprints
* [ ] KiCad-Library-Utils need to support the fileformat changes
* [x] https://gitlab.com/kicad/libraries/kicad-library-utils/-/merge_requests/727
* [x] Handle .kicad_symdir in the CI pipeline filters (https://gitlab.com/kicad/libraries/kicad-library-utils/-/merge_requests/738)
* [ ] Fix S5.2 and S6.2 check and/or test files so they don't break on re-save (per comment [here](https://gitlab.com/kicad/libraries/kicad-library-utils/-/merge_requests/736))
* [ ] Handle multiple body styles https://gitlab.com/kicad/libraries/kicad-library-utils/-/issues/432
* [x] Fix visual diff for unpacked symbols (https://gitlab.com/kicad/libraries/kicad-library-utils/-/merge_requests/737) (will require docker image for some renders)
* [x] get a `10.0-rcx` docker image we can use for our CI
* [x] Remove VRMLs
* [x] Strip out VRMLs from packages-3D (https://gitlab.com/kicad/libraries/kicad-packages3D/-/merge_requests/1327)
* [x] Disable/remove/deprecate VRMLs generation in the generators
* [x] Deprecate: https://gitlab.com/kicad/libraries/kicad-footprint-generator/-/merge_requests/2051
* [x] Don't configure CI to try to export VRML (https://gitlab.com/kicad/libraries/kicad-library-utils/-/merge_requests/739)
* [ ] Internally connected Pins (https://gitlab.com/kicad/libraries/kicad-footprint-generator/-/issues/746)
* [ ] USB Connector symbols https://gitlab.com/kicad/libraries/kicad-symbols/-/merge_requests/5417
* [ ] Switch symbols https://gitlab.com/kicad/libraries/kicad-symbols/-/merge_requests/5416
epic