- this makes them applicable to Foam::string, Foam::word etc
ENH: improvements to CStringList
- add strings() sublist variant which can be useful when handling
command arguments separately
- add construct from SubStrings.
- Translate a list of C++ strings into C-style (argc, argv) pair.
- Translate C-style (argc, argv) pair to list of C++ strings.
Useful when interfacing to external C-code and some libraries