Add ManualWeighingDialog

Elwig/Windows/AdministrationWindow.cs

@@ -252,6 +252,10 @@ namespace Elwig.Windows {
             };
         }
 
+        protected bool InputTextChanged(TextBox input) {
+            return InputTextChanged(input, new ValidationResult(true, null));
+        }
+
         protected bool InputTextChanged(TextBox input, Func<TextBox, bool, ValidationResult> checker) {
             return InputTextChanged(input, (tb, required, ctx) => checker(tb, required));
         }