BGA/CSP: upgrade manually-drawn BGAs to KiCad 7 format
This is a straight re-save of all the BGAs not in the KiCad 7 20221018 format.
No BGAs or CSPs remain in any previous format:
grep -L 20221018 Package_{BGA,CSP}.pretty/*.kicad_mod | wc -l
0
Since many of these need to be edited for pin 1 silkscreen and BGA pad properties (and probably moved to generated definitions) soon, this will make diffs simpler at that time.
There should be zero geometric or metadata changes.