added automation

.gitlab-ci.yml

+image: maven:3.8.4
+stages:
+  - build
+  - deploy
+
+variables:
+  MAVEN_CLI_OPTS: "-B -e -V"
+
+build:
+  stage: build
+  script:
+    - mvn $MAVEN_CLI_OPTS clean install
+  artifacts:
+    paths:
+      - target/*.jar
+
+deploy:
+  stage: deploy
+  script:
+    - mvn $MAVEN_CLI_OPTS deploy