Tons of new imporvements to search service and identifier service

.env.unix.example

.env.win.example

Makefile

docker-compose.yml

...ce/rest-service/src/main/resources/application-docker.yml

...ice/rest-service/src/main/resources/application-local.yml

...e-service/rest-service/src/main/resources/application.yml

...s/src/main/java/at/tuwien/config/ElasticsearchConfig.java

.../services/src/main/java/at/tuwien/config/IndexConfig.java

...est-service/src/main/java/at/tuwien/config/WebConfig.java

...in/java/at/tuwien/converters/IdentifierTypeConverter.java

...src/main/java/at/tuwien/endpoints/IdentifierEndpoint.java

...ce/rest-service/src/main/resources/application-docker.yml

...ice/rest-service/src/main/resources/application-local.yml

...r-service/rest-service/src/main/resources/application.yml

...s/src/main/java/at/tuwien/config/ElasticsearchConfig.java

...ices/src/main/java/at/tuwien/config/IndexInitializer.java

...es/src/main/java/at/tuwien/service/IdentifierService.java

...main/java/at/tuwien/api/database/query/QueryBriefDto.java

.../src/main/java/at/tuwien/api/database/query/QueryDto.java