citation feature

[Natkeeran]

(Not sure if this is the best way to get changes in.)

This PR adds a module called citation_select, which enables one to generate citations using various CSL profiles. It uses the core bibcite module at the backend to generate the citations. It can handle Typed Relation fields as well as EDTF fields.

Essentially, this is adding two new modules

        "drupal/bibcite": "^2.0@beta",
        "drupal/citation_select": "^1.0@beta",

and two additional configs:
config/sync/citation_select.settings.yml
config/sync/context.context.citation_select_block.yml

I waw running into php 8 related build issue in isle-dc, and ran this as suggested by Don, which made some additional changes to the composer.

composer require drupal/search_api_solr:* symfony/string:5.4 maennchen/zipstream-php:2.2.6

Further, the config sync contains some bibcite related configs.

[rosiel]

I think this is almost ready to go. However the changes I provided to the Citation Select module (renaming the menu links) are on a commit on the 1.0.x branch of Citation Select, and not on the tag 1.0.x-beta2. We currently require @beta, which is better than requiring the head of a branch, so perhaps another beta can be tagged on the citation_select module and we can update the composer.lock file here so that when we merge this PR it comes with the new UI wording.