review all code

[paolap]

Need to review all code as there were substantial changes to zenodo. This now follows a lot more closely latest version of invenioRDM.

So I want to check which functionalities are working, which are broken what can be simplified.

• list zenodo records
• list invenio records
• connect to zenodo sandbox
• select zenodo community
• select invenio community
• upload record to zenodo
• upload record to invenio
• upload file to zenodo
• upload file to invenio
• remove draft record from invenio
• remove draft record from zenodo
• remove published record from invenio

[paolap]

Finally returning to this, starting by tidying up all randomly collected codes, there's probably scope to have a few utilities for all the code that is needed to actually scrape data from other data sources.