Suggestion: enable the Croissant exporter by default (opt-out instead of opt-in)

[pdurbin]

Overview of the Suggestion

Currently, the Croissant exporter is opt-in. You have to manually install it, as described at https://github.com/gdcc/exporter-croissant

What if new installation of Dataverse automatically got the Croissant exporter? We would keep the modularity. If they want to opt-out of Croissant, they would remove the Croissant jar file.

What inspired this idea?

As of 6.5 we can query an API to see which exporters are enabled (#10739) and we've noticed that only 1 out of 13 have enabled it:

bonndata.uni-bonn.de             Datacite,dataversejson,dcterms,ddi,html,oaidatacite,oaidc,oaiddi,OAI_ORE,schema.org            6.5/1682-d9cc5eb         
darus.uni-stuttgart.de           Datacite,dataversejson,dcterms,ddi,html,oaidatacite,oaidc,oaiddi,OAI_ORE,schema.org            6.5/None         
data.tu-dortmund.de              Datacite,dataversejson,dcterms,ddi,html,oaidatacite,oaidc,oaiddi,OAI_ORE,schema.org            6.5/1682-d9cc5eb         
dataverse.dartmouth.edu          Datacite,dataversejson,dcterms,ddi,html,oaidatacite,oaidc,oaiddi,OAI_ORE,schema.org            6.5/1682-d9cc5eb         
dataverse.harvard.edu            croissant,Datacite,dataversejson,dcterms,ddi,html,oaidatacite,oaidc,oaiddi,OAI_ORE,schema.org  6.5/iqss-2         
dataverse.lib.unb.ca             Datacite,dataversejson,dcterms,ddi,html,oaidatacite,oaidc,oaiddi,OAI_ORE,schema.org            6.5/1682-d9cc5eb         
dataverse.orc.gmu.edu            Datacite,dataversejson,dcterms,ddi,html,oaidatacite,oaidc,oaiddi,OAI_ORE,schema.org            6.5/1682-d9cc5eb         
dataverse.theacss.org            Datacite,dataversejson,dcterms,ddi,html,oaidatacite,oaidc,oaiddi,OAI_ORE,schema.org            6.5/1682-d9cc5eb         
datosdeinvestigacion.udea.edu.co Datacite,dataversejson,dcterms,ddi,html,oaidatacite,oaidc,oaiddi,OAI_ORE,schema.org            6.5/1682-d9cc5eb         
edatos.consorciomadrono.es       Datacite,dataversejson,dcterms,ddi,html,oaidatacite,oaidc,oaiddi,OAI_ORE,schema.org            6.5/None         
edmond.mpdl.mpg.de               Datacite,dataversejson,dcterms,ddi,html,oaidatacite,oaidc,oaiddi,OAI_ORE,schema.org            6.5/mpdl-develop - 8eced947ba         
heidata.uni-heidelberg.de        Datacite,dataversejson,dcterms,ddi,html,oaidatacite,oaidc,oaiddi,OAI_ORE,schema.org            6.5/1682-d9cc5eb         
rdr.kuleuven.be                  Datacite,dataversejson,dcterms,ddi,html,oaidatacite,oaidc,oaiddi,OAIORE,rocratejson,schema.org 6.5/1682-d9cc5eb