add Get????Version function of expat/jsoncpp

src/json/JsonTool.cpp

@@ -9,6 +9,11 @@ using namespace std;
 
 namespace hgl
 {
+    const UTF8String GetJsoncppVersion()
+    {
+        return UTF8String(JSONCPP_VERSION_STRING);
+    }
+
     bool JsonToString(const Json::Value &jv_root,UTF8String &str,OSString &error_info)
     {
         Json::StreamWriterBuilder builder;

src/xml/XMLParseClass.cpp

@@ -9,6 +9,15 @@ namespace hgl
 {
     namespace xml
     {
+        const UTF8String GetExpatVersion()
+        {
+            return( UTF8String::valueOf(XML_MAJOR_VERSION)+
+                    UTF8String(U8_TEXT("."))+
+                    UTF8String::valueOf(XML_MINOR_VERSION)+
+                    UTF8String(U8_TEXT("."))+
+                    UTF8String::valueOf(XML_MICRO_VERSION));
+        }
+
         namespace
         {
             void XMLStartElement(ElementParse *ep,const XML_Char *name,const XML_Char **atts)