o Added support for SMPTE RDD 47 "ISXD Track File"

o Added support for SMPTE RDD 47 "ISXD Track File"
o Added generic support for SMPTE RP 2057 "Text-Based Metadata Carriage in MXF"
o Re-factored AS-02 frame-wrap index write to use a common implementation
o Re-factored support for SMPTE ST 410 to use a common implementation (affects
o   AS-DCP and AS-02 timed-text MXF (SMPTE 429-5)
o Patched several ambiguous integer casts.
o Added new essence type identifiers ESS_AS02_ISXD and ESS_AS02_ACES
o Fixed a bug wherein the Generic Container data tarck clip was instead being
o   written as a DM track
o Fixed UL values DCDataDescriptor and ContainerConstraintSubDescriptor to have
o   a byte 6 value of 0x53 (Tag Set) instead of 0x07 (coding sentinel)
o Added UL values 492 - 511 to the dictionary
o Added ApplicationSchemes and ConformsToSpecifications to the Preface set
o Added default initializer to MXF::LineMapPair
o Added sets DescriptiveFramework, DescriptiveObject, TextBasedDMFramework,
o   TextBasedObject, GenericStreamTextBasedSet and ISXDDataEssenceDescriptor
o Added ISXD support and options '-G', '-u' to as-02-wrap
o Added ISXD support and option '-g' to as-02-unwrap