message: add CHANGELOG details about AliasDTO bugfixx
diff: - Added exposed UInt64.fromHex and UInt64.toHex
  - Added MosaicId.createFromNonce
  - Added MosaicNonce, MosaicNonce.createRandom
  +- Fixed AliasDTO.mosaicId to be UInt64
  +- Added nem2-library@v0.9.8 version update (cow compatibility)
  # v0.10.2
  