BerTlvBuilder - addHex looses data if size not even

[kacert]

BerTlvBuilder.addHex - when adding Stiring of odd length, will just process the even number of characters.
In my view either it should throw an exception/runtime exception or process all characters correctly.

The data is then skipped in HexUtil.parseHex where the size of destination buffer is integer division that doesn't work for numbers that are not power of 2.