need SAS actor
Need to be able to run SAS jobs from within Ptolemy. Initially this could be a
port of the Monarch engine that hadles this.
Later on this could be run by having SAS on a server exposed as a Grid Service,
and therefore accessible through a GridService agent in Ptolemy. I'll post a
separte bug for creating GridService agents.
To close this bug, simply create an initial mechanism for running SAS jobs from