added accessibility override for main click

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

VDS/BaseClasses/Selector/SelectorBase.swift

@@ -134,4 +134,15 @@ open class SelectorBase: Control, SelectorControlable {
         super.reset()
         onChange = nil 
     }
+    
+    public var accessibilityDefaultAction: (() -> Void)?
+    
+    public override func accessibilityActivate() -> Bool {
+        if let accessibilityDefaultAction {
+            accessibilityDefaultAction()
+        } else {
+            toggle()
+        }
+        return true
+    }
 }