Add a new option

Author: JonathanMagnan

src/HtmlAgilityPack.Shared/HtmlDocument.cs

@@ -224,6 +224,11 @@ public static bool DisableBehaviorTagP
         /// </summary>
         public int OptionMaxNestedChildNodes = 0;
 
+        /// <summary>
+        /// Enable to create a "new line" for tag such as "br"
+        /// </summary>
+        public bool OptionEnableBreakLineForInnerText;
+
 
 		#endregion
 

src/HtmlAgilityPack.Shared/HtmlNode.cs

@@ -421,6 +421,12 @@ internal virtual void InternalInnerText(StringBuilder sb, bool isDisplayScriptin
                 return;
             }
 
+            if (_ownerdocument.OptionEnableBreakLineForInnerText && Name == "br")
+            {
+                sb.AppendLine();
+                return;
+            }
+
             if (_nodetype == HtmlNodeType.Text)
             {
                 sb.Append(((HtmlTextNode) this).Text);