flipped off by default but only set if "touchUpInside" publisher is set

Signed-off-by: Matt Bruce <matt.bruce@verizon.com>

VDS/Classes/Control.swift

@@ -29,7 +29,7 @@ open class Control: UIControl, Handlerable, ViewProtocol, Resettable {
         
     open override var isSelected: Bool { didSet { didChange() } }
     
-    internal var enabledHighlight: Bool = true
+    internal var enabledHighlight: Bool = false
     
     var isHighlightAnimating = false
     open override var isHighlighted: Bool {

VDS/Publishers/UIControlPublisher.swift

@@ -17,6 +17,12 @@ public final class UIControlSubscription<SubscriberType: Subscriber, Control: UI
     public init(subscriber: SubscriberType, control: Control, event: UIControl.Event) {
         self.subscriber = subscriber
         self.control = control
+        
+        //allow highlight for VDS.Controls on "onClick" events
+        if let c = control as? VDS.Control, event == .touchUpInside {
+            c.enabledHighlight = true
+        }
+        
         control.addTarget(self, action: #selector(eventHandler), for: event)
     }