Enhanced translator error messages.

[charles-turner-1]

Is your feature request related to a problem? Please describe.

#279 and #290 : when builds fail due to translator errors, it can be difficult to reliably identify which translator failed. This can be an issue at catalog build time if NCI datastores change.

Describe the feature you'd like

Translators to provide a class name when failing such that debugging translator failures is more straightforward.

Describe alternatives you've considered

<Replace this text with a clear and concise description of any alternative solutions or features you've considered.>

Additional context

[charles-turner-1]

@marc-white I'm wrapping up the translator errors now - PR should be in ASAP.

[marc-white]

Once that's in, for speed I won't bother with a new draft release - I'll just do a local install of the updated main and run a build from that.

[marc-white]

@charles-turner-1 how are you traveling? Can I help at all?

[charles-turner-1]

See #298 - got hung up trying to move all the error handling into a single decorator - struggling to get it to grab func.__name__ correctly.

[charles-turner-1]

Closed by #298.