Metadata citation improvements

[josegar74]

• BibTex: change data entry type to misc (data seems not valid: https://en.wikipedia.org/wiki/BibTeX\#Entry_types).
• RIS: add support for PY (publication year), DA (publication date) and LA (language) fields.

Adds also an option to download the citation file:

Checklist

• I have read the contribution guidelines
• Pull request provided for main branch, backports managed with label
• Good housekeeping of code, cleaning up comments, tests, and documentation
• Clean commit history broken into understandable chucks, avoiding big commits with hundreds of files, cautious of reformatting and whitespace changes
• Clean commit messages, longer verbose messages are encouraged
• API Changes are identified in commit messages
• Testing provided for features or enhancements using automatic tests
• User documentation provided for new features or enhancements in manual
• Build documentation provided for development instructions in README.md files
• Library management using pom.xml dependency management. Update build documentation with intended library use and library tutorials or documentation

Funded by EEA

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[geonetworkbuild]

The backport to 4.2.x failed:

The process '/usr/bin/git' failed with exit code 1

stderr

error: could not apply 892e45ea47... Metadata citation improvements:
hint: After resolving the conflicts, mark them with
hint: "git add/rm <pathspec>", then run
hint: "git cherry-pick --continue".
hint: You can instead skip this commit with "git cherry-pick --skip".
hint: To abort and get back to the state before "git cherry-pick",
hint: run "git cherry-pick --abort".
hint: Disable this message with "git config set advice.mergeConflict false"

stdout

Auto-merging schemas/iso19115-3.2018/src/main/plugin/iso19115-3.2018/formatter/citation/base.xsl
Auto-merging schemas/iso19115-3.2018/src/main/plugin/iso19115-3.2018/formatter/citation/common.xsl
CONFLICT (content): Merge conflict in schemas/iso19115-3.2018/src/main/plugin/iso19115-3.2018/formatter/citation/common.xsl
Auto-merging schemas/iso19139/src/main/plugin/iso19139/formatter/citation/base.xsl
CONFLICT (content): Merge conflict in schemas/iso19139/src/main/plugin/iso19139/formatter/citation/base.xsl
CONFLICT (modify/delete): services/src/test/resources/org/fao/geonet/api/records/formatters/iso19115-3.2018-citation-bibtex.txt deleted in HEAD and modified in 892e45ea47 (Metadata citation improvements:).  Version 892e45ea47 (Metadata citation improvements:) of services/src/test/resources/org/fao/geonet/api/records/formatters/iso19115-3.2018-citation-bibtex.txt left in tree.
CONFLICT (modify/delete): services/src/test/resources/org/fao/geonet/api/records/formatters/iso19115-3.2018-citation-ris.txt deleted in HEAD and modified in 892e45ea47 (Metadata citation improvements:).  Version 892e45ea47 (Metadata citation improvements:) of services/src/test/resources/org/fao/geonet/api/records/formatters/iso19115-3.2018-citation-ris.txt left in tree.
CONFLICT (modify/delete): services/src/test/resources/org/fao/geonet/api/records/formatters/iso19139-citation-bibtex.txt deleted in HEAD and modified in 892e45ea47 (Metadata citation improvements:).  Version 892e45ea47 (Metadata citation improvements:) of services/src/test/resources/org/fao/geonet/api/records/formatters/iso19139-citation-bibtex.txt left in tree.
CONFLICT (modify/delete): services/src/test/resources/org/fao/geonet/api/records/formatters/iso19139-citation-ris.txt deleted in HEAD and modified in 892e45ea47 (Metadata citation improvements:).  Version 892e45ea47 (Metadata citation improvements:) of services/src/test/resources/org/fao/geonet/api/records/formatters/iso19139-citation-ris.txt left in tree.

To backport manually, run these commands in your terminal:

# Fetch latest updates from GitHub
git fetch
# Create a new working tree
git worktree add .worktrees/backport-4.2.x 4.2.x
# Navigate to the new working tree
cd .worktrees/backport-4.2.x
# Create a new branch
git switch --create backport-8607-to-4.2.x
# Cherry-pick the merged commit of this pull request and resolve the conflicts
git cherry-pick 892e45ea47b5891f41419bcf1a61e1bb9dc5f20c,72130a0f888f3f04665084d4f2c181b564d199a3
# Push it to GitHub
git push --set-upstream origin backport-8607-to-4.2.x
# Go back to the original working tree
cd ../..
# Delete the working tree
git worktree remove .worktrees/backport-4.2.x

Then, create a pull request where the base branch is 4.2.x and the compare/head branch is backport-8607-to-4.2.x.