Put the string manipuuation utils in the cpp, and
remove string_utils.h from the includes of netinfo.h.
This spams that header into about 350 files, not all of which
need it. Then go round and tidy up the places (most exporters
and dialogs) where CPP files weren't including string_utils.h
when they used it, as well as some other order-sensitive
include issues that turned up.
Also cleans up a misconception about table header borders,
and renames the getter/setter to be clearer.
Also makes sure that table cells are updated when the table
layer changes.
And another bug where we were writing the grey color value
back to the cell for hidden cells.
Fixes https://gitlab.com/kicad/code/kicad/-/issues/20319
Recommendation is to avoid using the year nomenclature as this
information is already encoded in the git repo. Avoids needing to
repeatly update.
Also updates AUTHORS.txt from current repo with contributor names
Also adds support for tabbing between table cells in the
table editor dialog.
Also adds support for calling the table editor dialog from
edit properties on a table selection.
Fixes https://gitlab.com/kicad/code/kicad/-/issues/17337
