Allow use as library in other tools. (Requires concept|design generalisation)

There are some possibilities:

1. Either have some configuration relevant enumerations implement interfaces and allow substitution.
2. Or use other concepts (properties per e.g. Muster pattern loaded from configuration).
3. Or include generic indexless patterns.

The route 3 is the quickest to add. If it fails a fallback to two comes with bigger code changes.