Duplicated TextChanged event handler in TextField

[Seungkeun Lee]

TizenFX/src/Tizen.NUI/src/public/BaseComponents/TextField.cs

Lines 95 to 105 in 234af94

 internal TextField(TextField handle, bool shown = true) : this(Interop.TextField.NewTextField(TextField.getCPtr(handle)), true) 
 { 
     if (NDalicPINVOKE.SWIGPendingException.Pending) throw NDalicPINVOKE.SWIGPendingException.Retrieve(); 
  
     if (!shown) 
     { 
         SetVisible(false); 
     } 
  
     TextChanged += TextFieldTextChanged; 
 } 

This constructor add TextChanged handler and it use below constructor

TizenFX/src/Tizen.NUI/src/public/BaseComponents/TextField.cs

Lines 85 to 93 in 234af94

 internal TextField(global::System.IntPtr cPtr, bool cMemoryOwn, bool shown = true) : base(cPtr, cMemoryOwn, null) 
 { 
     if (!shown) 
     { 
         SetVisible(false); 
     } 
     Focusable = true; 
     TextChanged += TextFieldTextChanged; 
 } 

And it also add TextChanged handler