Parent command groups should show all child commands

[AI3I]

Parent command groups like SET or UNSET and SHOW should display all children commands within their respective hierarchical families.

[AI3I]

Also remember to ensure it adheres to set/wrap (80-character wrap around) or unset/wrap for telnet connections.

[AI3I]

show/commands now expands grouped families and lists child commands under the parent namespaces instead of treating show/set/unset as opaque buckets. The telnet command catalog path and tests were updated accordingly. Closing as resolved in the current tree.