fix #14064 xmltree should allow create text node with raw text(non-es… (#14070)

* fix #14064 xmltree should allow create text node with raw text(non-escaped) eg. html style element's text

* change xnRawText to VerbatimText,newRawText to newVerbatimText ,add since anotation

* change changelog_1_2_0.md latest date

* move change log

Co-authored-by: bung87 <crc32@qq.com>

changelog.md

@@ -3,7 +3,7 @@
 
 
 ## Standard library additions and changes
-
+- Added `xmltree.newVerbatimText` support create `style`'s,`script`'s text.
 - `uri` adds Data URI Base64, implements RFC-2397.
 - Add [DOM Parser](https://developer.mozilla.org/en-US/docs/Web/API/DOMParser)
   to the `dom` module for the JavaScript target.

changelogs/changelog_1_2_0.md

@@ -2,7 +2,6 @@
 
 
 ## Standard library additions and changes
-
 - Added overloaded `strformat.fmt` macro that use specified characters as
   delimiter instead of '{' and '}'.
 - Added new procs in `tables.nim`: `OrderedTable.pop`, `CountTable.del`,

lib/pure/xmltree.nim

@@ -35,6 +35,7 @@
 ## * `htmlgen module <htmlgen.html>`_ for html code generator
 
 import macros, strtabs, strutils
+include "system/inclrtl"
 
 type
   XmlNode* = ref XmlNodeObj ## An XML tree consisting of XML nodes.
@@ -44,6 +45,7 @@ type
 
   XmlNodeKind* = enum ## Different kinds of XML nodes.
     xnText,           ## a text element
+    xnVerbatimText,   ## 
     xnElement,        ## an element with 0 or more children
     xnCData,          ## a CDATA node
     xnEntity,         ## an entity (like ``&thing;``)
@@ -56,7 +58,7 @@ type
 
   XmlNodeObj {.acyclic.} = object
     case k: XmlNodeKind # private, use the kind() proc to read this field.
-    of xnText, xnComment, xnCData, xnEntity:
+    of xnText, xnVerbatimText, xnComment, xnCData, xnEntity:
       fText: string
     of xnElement:
       fTag: string
@@ -101,6 +103,12 @@ proc newText*(text: string): XmlNode =
   result = newXmlNode(xnText)
   result.fText = text
 
+proc newVerbatimText*(text: string): XmlNode {.since:(1, 3).} = 
+  ## Creates a new ``XmlNode`` of kind ``xnVerbatimText`` with the text `text`.
+  ## **Since**: Version 1.3.
+  result = newXmlNode(xnVerbatimText)
+  result.fText = text
+
 proc newComment*(comment: string): XmlNode =
   ## Creates a new ``XmlNode`` of kind ``xnComment`` with the text `comment`.
   runnableExamples:
@@ -646,6 +654,8 @@ proc add*(result: var string, n: XmlNode, indent = 0, indWidth = 2,
     result.add(">")
   of xnText:
     result.addEscaped(n.fText)
+  of xnVerbatimText:
+    result.add(n.fText)
   of xnComment:
     result.add("<!-- ")
     result.addEscaped(n.fText)