Allows testing codemeta sample files
Solves #6 (moved) and allows testing of codemeta_*.json
files (e.g; codemeta_sample1.json
file as discussed in MR !6 (merged))
@tacke, @tamas.gal could you please check that your contact and institution info at the codemeta.json
files is correct, please? Also feel free to comment/review anything