Merged PRs

dolt

11006: Preserve tables absent from the index during checkout, reset, and rebase
Tables present only in the working tree (never added to staging) were being deleted or incorrectly staged by the three commands.
- Scope checkout . table list to HEAD and staged root
- Update working and staged roots independently in the specific-table checkout case
- Add MoveUntrackedTables helper for the working-tree preservation step in reset --hard and
  rebase
- Apply rebase preservation via direct UpdateWorkingSet before SwitchWorkingSet
- Fix dolt reset --soft <rev> to leave the index untouched
- Rename ResetSoftToRef to MoveHeadToRef and resetSoftToRef to resetMixedToRef so names match
  behavior
11002: When dolt diff -r sql encounters a schema change, it should either print the full diff or return an error
Previously, whenever a table had a schema change, dolt diff -r sql would skip printing the data diff for that table. It would print a message to stderr, but still return a 0 error code. This is misleading, especially if the diff command is called by an automated process.
This PR improves the situations where we successfully render the data diff. In situations where we can't, we return a nonzero error code.