- added doi registration

- npm updates for webpack-encore and postcss-loader
- DatasetExtension.ts: use relation contributors for PersonContributor
- added DoiClient.ts and DoiClientContract.ts
- rozes.ts: addes routes for creating and storing doi identifier
- addes xslt doi_datacite.xslt needed for registering DOI identifier

app/Models/Traits/DatasetExtension.ts

@@ -82,7 +82,7 @@ export default abstract class DatasetExtension extends LucidBaseModel {
                     sort_order: 'sort_order',
                     allow_email_contact: 'allow_email_contact',
                 },
-                relation: 'persons',
+                relation: 'contributors',
                 fetch: 'eager',
             },
             Reference: {