CLI option for error formatting style `--message-format`

Community Note

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Feature Spec

Add an option to the CLI for choosing how errors are formatted, such as in a "short" format (that does not show code snippets" or a "json" format. Naming suggestions welcome

Use Cases

When users do not want to fully detailed diagnostics and renderings of their code snippets, or they want to parse Wing errors programmatically.

Implementation Notes

The library used by the CLI for rendering error messages supports a few rendering styles, and the wing compiler also is capable of producing errors as JSON as well (though the format is ad-hoc at the moment).

Component

CLI