MetaDataValidation
MetaDataValidation

- ensure that amount of bytes read from metaData does not exceed expected meta data length
- do not set m_IsBodyUnpacked and UNPACK_BODY if unpacking failed

openigtlink/OpenIGTLink,openigtlink/OpenIGTLink,openigtlink/OpenIGTLink,openigtlink/OpenIGTLink,openigtlink/OpenIGTLink