Multiple typos has been fixed.
- docs/upb/design.md -> line no 291: changed 'newMessageAccesor' to 'newMessageAccessor '
- docs/design/editions/edition-zero-features.md -> line no 149: changed 'implict' to 'implicit'
Closes#14385
This change moves almost everything in the `upb/` directory up one level, so
that for example `upb/upb/generated_code_support.h` becomes just
`upb/generated_code_support.h`. The only exceptions I made to this were that I
left `upb/cmake` and `upb/BUILD` where they are, mostly because that avoids
conflict with other files and the current locations seem reasonable for now.
The `python/` directory is a little bit of a challenge because we had to merge
the existing directory there with `upb/python/`. I made `upb/python/BUILD` into
the BUILD file for the merged directory, and it effectively loads the contents
of the other BUILD file via `python/build_targets.bzl`, but I plan to clean
this up soon.
PiperOrigin-RevId: 568651768
Joshua Haberman
Parikshit Adhikari
Adam Cozzette