verbose.q

## Feature Request

### Description of Problem:

Although q prides itself in terseness and efficiency, it can come at a price:
- Highly-overloaded symbolic operators can be beginner-unfriendly (as well as search engine unfriendly).
- Error messages are ambiguous and require console access to get at the root cause.
- Some overloads are considered dangerous since they can : mutate state, open sockets, etc.

### Potential Solutions:

Offer a standardized "verbose" wrapper around q operators which disambigate the overloads and provide more informative error messages.

The issue names no files, tests, or entry points. Start by determining which q operators and overloads the proposed wrapper would cover, then define the error-message and state-mutation behavior that would count as complete.

Written by the indexing model from the issue text.