Add a NewRelic Java agent

This application can be used only in combination with other Java applications.
For example:
make image=tomcat,java-newrelic
It add a new relic agent to the application, sending metrics to the newrelic server.
The server visualize the metrics in different ways.
More here: http://newrelic.com/

One must update the newrelic.yml with his licence key and application name before deploy.
More on the README file

Signed-off-by: Tzach Livyatan <tzach@cloudius-systems.com>