Update test to cope with updated example config
enabled preload of existing data

uses exissting schedule structures, extra config
filesystemdatastore no longer throws on read fail
need to profile, and check the fs data store read retry loop --
unecessary work?
Enabled multisource sinks, MultiPlotter

Factored out Multiple{Sink,Source}Chains
Created IMultipleSnapshotConsumer
Brought in MultiPlotter
Corrections for MultiPlotter

Handle confguration correctly
Log schedule creation
Fix spaces before source name in chain