Generate Liquibase changelog SQLs on CLI

liquibase-changelog.sh

java -jar liquibase.jar \
      --driver=org.postgresql.Driver \
      --classpath=postgresql-9.4.1208.jre6.jar \
      --changeLogFile=/workspace/product-api/src/main/resources/db/changelog.xml \
      --url="jdbc:postgresql://localhost:5432/product" \
      --username=root \
      --password=123qwe \
      updateSQL