Consider changing image_info() to use web service

[raymondben]

Currently the image_info() function scrapes its info from a web page. Ideally this should use a web service instead, but it may require implementing one on the server side. At the time of writing the image_info() function there was no such service.

[raymondben]

Guesstimated time - 3 hours if no such service exists and won't be implemented (i.e. no action needed). If the service exists, 3 days. If the service needs to be written, ???

[matildastevenson]

Fixed in https://github.com/AtlasOfLivingAustralia/ALA4R/commit/bc8145ac9ae4d8b654def74e511fa47e98867f19