ADDED Update Symbol from Library and Change Symbol can now specify
whether or not to update attributes (include in BOM and include on
board).
Fixes https://gitlab.com/kicad/code/kicad/issues/7123
Also makes sure that the instance fields get set for reference, value
and footprint, and not just the base SCH_FIELD.
Also makes the translations easier.
Fixes https://gitlab.com/kicad/code/kicad/issues/6459