Packaging the crate and delivery

[marcolarosa]

• pull in ro-crate.js
• enable exporting the crate capability
  • [x] use ro-crate to render a html version into the folder
  • [x] export to zip
  • [x] ask the user where to store it
• add bagit capability for bonus points
  • [x] see: https://tools.ietf.org/id/draft-kunze-bagit-16.html
  • [x] see calcyte code - provided by PT
  • [x] bag the individual files not the zip file
  • [x] always zip out

[ptsefton]

Here's the calcyte code: https://code.research.uts.edu.au/eresearch/CalcyteJS/blob/master/lib/bag.js

[marcolarosa]

Closing with https://github.com/UTS-eResearch/describo/commit/57f3fbc3f2ea229dd5eb342184b3ba7c8c9a00f4