add ci configuration

.gitlab-ci.yml

+compile_withmaven:
+  image: maven:latest
+  script:
+    - cd lib
+    - curl -o corpus-services.jar https://gitlab.rrz.uni-hamburg.de/corpus-services/corpus-services/-/jobs/artifacts/develop-quest/raw/target/corpus-services-1.0.jar?job=compile_withmaven
+    - cd ..
+    - mvn install:install-file -Dfile=corpus-services.jar -DgroupId=de.uni_hamburg.corpora -DartifactId=corpus-services -Dversion=1.0 -Dpackaging=jar
+    - mvn clean test compile assembly:single
+    
+  artifacts:
+    expire_in: 10 week
+    paths:    
+      - target/corpus-service-gui-1.0-SNAPSHOT-bundle.jar
+      - run-linux.sh
+