Add support for Infinispan/JBoss DataGrid session cache

[atgreen]

Hazelcast appears to be the only out-of-the-box session cache option. Please consider adding support for Infinispan / JBoss DataGrid, which also implements the JCache API.

[arthurdm]

Thanks for your feedback @atgreen - we are considering this option. Stay tuned.

[arthurdm]

btw - this is being added to Open Liberty via OpenLiberty/ci.docker#155

Then we would propagate that into the WebSphere Liberty containers too.