migrating conversion modifiers from JetCore::Global to MString.

MString.h

@@ -231,14 +231,81 @@ namespace coreutils {
       ///
 
       MString &read(int fd);
+
+      ///
+      ///
+      ///
       
       int offset();
 
+      ///
+      ///
+      ///
+      
+      MString toBinary();
+
+      ///
+      ///
+      ///
+
+      MString fromBinary();
+
+      ///
+      ///
+      ///
+
+      MString toHex();
+
+      ///
+      ///
+      ///
+
+      MString fromHex();
+
+      ///
+      ///
+      ///
+
+      MString toBase64();
+
+      ///
+      ///
+      ///
+
+      MString fromBase64();
+
+      ///
+      ///
+      ///
+
+      MString toUpper();
+
+      ///
+      ///
+      ///
+
+
+      MString toLower();
+
+      ///
+      ///
+      ///
+
+      MString toCGI();
+
+      ///
+      ///
+      ///
+
+      MString fromCGI();
+
     protected:
       void setSize(int size);
       
     private:
       int bufferSize = 0;
+      char hexChar(char c);
+      
    };
    
 }