Find and filter actions EnableRule extended to disable when no parent

The "Find" and "Filter2" actions used on the various Browse* toolbars, as well as the standard ADM2 "Filter" action, now check for "RecordState=RecordAvailable,NoRecordAvailable". The check ensures that the actions are disabled when no parent is available. The check identifies this by the RecordState in the target being "NoRecordAvailableExt".

For Progress Dynamics, "Find", "Filter", and "Filter2" are changed in the Repository. For standard ADM2, the initAction in toolbar.p is changed to add the rule to "Filter".