WIP: cleanup, work on doc result form

GUIs.ZooFlow/Events/OnFlowFormStateChangedEvent.vb

@@ -0,0 +1,13 @@
+Public Class OnFlowFormStateChangedEvent
+    Public Enum FlowFormState
+        [Default]
+        HasSearchResults
+        HasFileDropped
+    End Enum
+
+    Public ReadOnly Property State As FlowFormState
+
+    Public Sub New(State As FlowFormState)
+        _State = State
+    End Sub
+End Class