added ci

gitlab-ci.yml

-variables:
-  GIT_SUBMODULE_STRATEGY: recursive
-  GIT_DEPTH: 1000
-
-stages:
-  - build
-  - publish
-
-cache:
-  paths:
-    - .gradle/wrapper
-    - .gradle/caches
-
-build:
-  image: openjdk:11
-  stage: build
-  script:
-    - ./gradlew --console=plain --no-daemon assemble jar
-  artifacts:
-    paths:
-      - "ragconnect.base/build/libs/ragconnect-*.jar"
-      - "ragconnect.base/src/gen"
-    expire_in: 1 week
-
-
-publish:
-  image: openjdk:11
-  stage: publish
-  needs:
-    - build
-  script:
-    - "./gradlew publish"