Add support for predicate in ApplyOperatorTo2 to support filtering of entities.
Example:
If true source and target is identical in Electrocute2 then target should be ignored.
// determine if target is invoker boolean isInvoker =
// hasIdenticalUniqueID(originalSource, target); if (!isInvoker)
// Entity originalSource = applyV(fnGetTrueSource, ports);

Resolved with commit: 8afe938