AssetReportPlugin manages REPORTFORDUTY and REPORTFORSERVICE relationships
Handles both expansion and allocation of these tasks.
This plugin sees the tasks created by the AssetDataPlugin, and allocates
them correctly so that the LPs force the Asset transfers.
getTaskPredicate - returns task predicate for task subscription
Default implementation subscribes to all non-internal tasks. Derived classes
should probably implement a more specific version.
UnaryPredicate - task predicate to be used.