Add ring syncing to the multi node example
Add ring syncing to the multi node example

This commit adds an example of how to sync rings between
nodes.

The ringbuilder role exports resources representing the ring
databases that need to be synced.

The storage node can then just collect these resources

eayunstack/fuel-library,SmartInfrastructures/fuel-library-dev,SmartInfrastructures/fuel-library-dev,slystopad/fuel-lib,stackforge/fuel-library,SmartInfrastructures/fuel-library-dev,ddepaoli3/fuel-library-dev,zhaochao/fuel-library,SmartInfrastructures/fuel-library-dev,huntxu/fuel-library,zhaochao/fuel-library,slystopad/fuel-lib,stackforge/fuel-library,ddepaoli3/fuel-library-dev,Metaswitch/fuel-library,ddepaoli3/fuel-library-dev,SmartInfrastructures/fuel-library-dev,zhaochao/fuel-library,xarses/fuel-library,xarses/fuel-library,eayunstack/fuel-library,xarses/fuel-library,huntxu/fuel-library,stackforge/fuel-library,slystopad/fuel-lib,huntxu/fuel-library,eayunstack/fuel-library,xarses/fuel-library,ddepaoli3/fuel-library-dev,eayunstack/fuel-library,stackforge/fuel-library,Metaswitch/fuel-library,zhaochao/fuel-library,huntxu/fuel-library,Metaswitch/fuel-library,eayunstack/fuel-library,slystopad/fuel-lib,ddepaoli3/fuel-library-dev,Metaswitch/fuel-library,zhaochao/fuel-library,huntxu/fuel-library