URL Checker Improvements

[amruelama]

Can URL Checker check DOIs or/and it's directing/re-directing URLs?

If not, can we add that feature to the current script?

The purpose of this is not to check if individual DOIs work, but to make sure the DOIs in GCIS are right (with out typos).

Improvements:

• [x] Check DOI resolution
• [x] Check redirect URLs for 200

[amruelama]

Article - Report QA