Fixing the behavior of --dep with --extract

[nikswamy]

See issue #2385

From CHANGES.md:

• Issue #2385.
  The behavior of the --extract option was changed so that it no
  longer treats the OCaml and Kremlin targets
  differently. Previously, when used with --dep full, F* would
  disregard the --extract setting when emitting the
  ALL_KRML_FILES variable.

From the new message associated with fstar --help:

  --extract One or more semicolon separated occurrences of '[TargetName:]ModuleSelector'
                Extract only those modules whose names or namespaces match the provided options.
                        'TargetName' ranges over {OCaml, Kremlin, FSharp, Plugin}.
                        A 'ModuleSelector' is a space or comma-separated list of '[+|-]( * | namespace | module)'.
                        For example --extract 'OCaml:A -A.B' --extract 'Kremlin:A -A.C' --extract '*' means
                                for OCaml, extract everything in the A namespace only except A.B;
                                for Kremlin, extract everything in the A namespace only except A.C;
                                for everything else, extract everything.
                        Note, the '+' is optional: --extract '+A' and --extract 'A' mean the same thing.
                        Note also that '--extract A' applies both to a module named 'A' and to any module in the 'A' namespace
                Multiple uses of this option accumulate, e.g., --extract A --extract B is interpreted as --extract 'A B'.

I also have patches to hacl-star, mitls-fstar and kremlin to accommodate this change.
With those patches, I have an everest green.

[nikswamy]

We discussed this extensively and I have open PRs in the other repos anticipating this change. Merging here followed by merges to the other everest repos.