Conversion to and from Unicode transformation formats

A separate class, CnvUtfConverter, is provided for converting text between Unicode (UCS-2) and the two Unicode transformation formats UTF-7 and UTF-8. The four conversion functions, all static, are ConvertFromUnicodeToUtf7(), ConvertFromUnicodeToUtf8(), ConvertToUnicodeFromUtf7(), and ConvertToUnicodeFromUtf8().

There is no direct way to convert between UTF-7 and UTF-8. Though it is possible to convert from one transformation format to UCS-2 and then from UCS-2 to the other transformation format.