Use CFF file as a source for DOI and authors+ORCID

[rmfranken]

As CFF (citation file format) is a best practice recommended by fair-software.eu, we should aim to use this meta-data captured in a CFF file to further enhance Gimie output. For instance, extracting DOI (into schema:identifier).

Note: Depends on #97

Objective: Add parser for CFF files to extract DOI

Requirements:

• New gimie.parsers.CffParser follows the gimie.parsers.Parser interface
• is added to gimie.parsers.PARSERS
• Tests verify that parser works as expected.

Next steps:

• Discuss if other properties should be extracted 's (e.g. authors in some properties such as m4di:orcidId , schema:author)

[rmfranken]

Getting more than the DOI really gimie's domain - we can get the information associated with a DOI using different services. Gimie is for repositories, not for publications.

[cmdoret]

closed by #107