Add new docker images

Add tomcat container, jetty tag and self-builded docker file

Dockerfile.tomcat

@@ -0,0 +1,8 @@
+FROM tomcat:9
+MAINTAINER D.Ducatel
+
+RUN apt-get update && \
+    apt-get install -y --no-install-recommends graphviz fonts-wqy-zenhei && \
+    rm -rf /var/lib/apt/lists/*
+
+ADD target/plantuml.war /usr/local/tomcat/webapps/ROOT.war