- added earliestPublicationDate for App/Models/Dataset.ts

- new classes TokenWorkerService.ts, TokenWorker.ts and ResumptionToken.ts for using REDIS with paging OAI results
- deletd public/asstes2/langCodeMap.xml: integrated it directly in datasetxml2oai-pmh.xslt
- added redis npm package
- added TokenWorkerProvider.ts for using singleton of TokenWorkerService inside OaiController.ts
- added config/oai.ts for oai related configs from .env-file
- adapted XmlModel.ts for grting domDocument from database

package.json

@@ -5,6 +5,7 @@
     "scripts": {
         "type-check": "tsc --noEmit",
         "dev": "node ace serve --watch",
+        "compress:xslt": "./node_modules/xslt3/xslt3.js -xsl:public/assets2/datasetxml2oai-pmh.xslt -export:public/assets2/datasetxml2oai.sef.json -t -nogo '-ns:##html5'",
         "build": "node ace build --production",
         "start": "node server.js",
         "lint": "eslint . --ext=.ts",
@@ -86,6 +87,7 @@
         "notiwind": "^2.0.0",
         "pg": "^8.9.0",
         "proxy-addr": "^2.0.7",
+        "redis": "^4.6.10",
         "reflect-metadata": "^0.1.13",
         "saxon-js": "^2.5.0",
         "source-map-support": "^0.5.21",