Fix a problem with incorrect managers being used.

An operation's specification may have a resource manager but it should never be used by a qtUIManager displaying an operation's specification since that will rarely if ever be tied to resources managed by a GUI.

Instead, have the operation panel provide the proper resource manager by holding on to the pqSMTKWrapper object created when attaching to a pqServer. That way, the items the UI manager configures will know what resources to monitor for changes.