Convenience offset on end of resource urls: /raw, /api, /viewer

[rgrp]

Raw

/raw or /download (latter may be better)

/dataset/{id}/resource/{resource-id}/raw

=> redirects to resource url (download)

API

/dataset/{id}/resource/{resource-id}/api[/....]

=> either redirects or directly serves /api/data/{resource-id}

Viewer (Explorer?)

Do data viewer but without anything else showing (full-screen?). this would not be just the data explorer but other cases too (including iframe etc ...)

/dataset/{id}/resource/{resource-id}/viewer

Resource (pre)-viewer without anything else (perhaps include resource title)

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Assigning for kindly for review.

These would take about 20m to implement and would be *very* convenient from my experience of using the data API.