Implement a new more efficient format for export archives

[sphuber]

The new format is described by AEP #005

[sphuber]

@chrisjsewell I tried to see if this issue already existed, but couldn't find one. Feel free to close it an link the duplicate if that exists.

[giovannipizzi]

A comment - a user reported privately that to import the AiiDA file from this Materials Cloud Archive entry, in Quantum Mobile 20.06.1, the logic volume (hard drive) has to be at least 300GB (as the data is uncompressed), for importing automatic_wannier_provenance.aiida.

The archive itself is smaller. Therefore, this could be a good dataset to benchmark the requirement in the AEP:

Exporting/importing an archive should not at any point require more free disk space than 2x the size of the uncompressed AiiDA data

[chrisjsewell]

cheers yep now we can finally merge the new repository, I can get back to finishing this

[ramirezfranciscof]

Duplicate of #4384 , we can continue the discussion there since these are interlinked topics.