tests: add Novell DOS tool baseline suite

Add DOS-side baseline scripts for the Novell tools used to compare the
reimplemented public utilities.

The suite covers the current baseline set:

  MAP
  SLIST
  WHOAMI
  LOGIN / LOGOUT
  NDIR
  NCOPY
  FLAG
  FLAGDIR
  CREATOR
  RIGHTS
  GRANT
  REVOKE
  REMOVE

It also includes supporting trustee, rights, rename, move, delete and
file-operation tests.

Each test writes reproducible output into a per-tool CMP directory and
provides a matching ZIP helper for collecting the results. The ZIP
helpers clean generated test trees afterwards so SYS: does not keep
accumulating temporary directories.

This is the Novell baseline layer only. A later change can extend the
same scripts to run the full comparison cycle:

  NPUBLIC baseline -> PUBLIC implementation -> NPUBLIC control

test/flag/README.md

@@ -0,0 +1,35 @@
+# FLAG automated test
+
+Novell FLAG baseline using `NPUBLIC\FLAG`.
+
+## Run
+
+Run while already logged in and with `F:` mapped to `SYS`.
+
+```text
+FLGTSTA
+FLGTZIP
+```
+
+Result:
+
+```text
+F:\FLGCMP\FLGTSTA.ZIP
+```
+
+Linux package with server log:
+
+```sh
+sudo ./mars_packtest_v3.sh flgtsta 5 mario
+```
+
+## Coverage
+
+- file flag display
+- `FLAG ... N`
+- set/clear `H`, `RO`, `A`, `Sy`, `DI`, `RI`
+- combined flags
+- NDIR readback
+- NDIR filters `/H`, `/RO`, `/A`, `/SY`, `/NOT H`, `/NOT RO`
+- copy/rename smoke check
+- final cleanup