Adding deployment pipeline

bitbucket-pipelines.yml

-image: maven:3.6.0-jdk-11-slim
+image: maven:3.6.3-jdk-11-slim
 
 pipelines:
-  default:
-    - step:
-        script:
-          - mvn -version
+   branches:
+      develop:
+         - step:
+            caches:
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+             - maven
+            script:
+             - apt-get update -y
+             - apt-get install -y git
+             - git clone --depth=1 https://bitbucket.org/l2jserver/l2j-server-game.git
+             - cd l2j-server-game
+             - mvn install -DskipTests
+             - cd ..
+         - step:
+            caches:
+             - maven
+            script:
+             - mvn install
+            artifacts:
+             - target/*.zip
+         - step:
+            deployment: Production
+            script:
+             - pipe: atlassian/ftp-deploy:0.2.3
+               variables:
+                 USER: $FTP_USER
+                 PASSWORD: $FTP_PASSWORD
+                 SERVER: $FTP_HOST
+                 REMOTE_PATH: $FTP_REMOTE_PATH
+                 LOCAL_PATH: 'target/'
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