helper for text

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

VDS/Components/Tooltip/Tooltip.swift

@@ -183,6 +183,20 @@ open class Tooltip: Control, TooltipLaunchable {
             accessibilityLabel = label
         }
     }
+    
+    public static func accessibleText(for title: String?, content: String?, closeButtonText: String) -> String {
+        var label = ""
+        if let title {
+            label = title
+        }        
+        if let content {
+            if !label.isEmpty {
+                label += ","
+            }
+            label += content
+        }
+        return label
+    }
 }