UpdateJsonFileTask: Added support to update boolean value

Author: mzorec

src/FlubuCore/Tasks/Text/UpdateJsonFileTask.cs

@@ -110,6 +110,18 @@ public UpdateJsonFileTask Update(string path, decimal value)
             return this;
         }
 
+        /// <summary>
+        ///  Updates json property/element with specified value,
+        /// </summary>
+        /// <param name="path">Json path to the element to be updated</param>
+        /// <param name="value">New value of the json element</param>
+        /// <returns></returns>
+        public UpdateJsonFileTask Update(string path, bool value)
+        {
+            _updates.Add(path, new JValue(value));
+            return this;
+        }
+
         /// <summary>
         ///  Updates json property/element with specified value,
         /// </summary>