- ConvertINetMultiByteToUnicode/ConvertINetUnicodeToMultiByte should return required target length if the target buffer is NULL - add the tests for all the above - fix IMultiLanguage2 vtable (it was missing ConvertStringFromUnicodeEx)
and IsConvertINetStringAvailable by moving common code around, add a stub for ConvertINetString.
Added an implementation of mlang.dll and test cases for it.