v2.1.0-beta.1

Added

• NftId.[to|from]string() now uses format 1.2.3/4 instead of 1.2.3@4
• TokenNftInfoQuery.setNftId()
• Support for automatic token associations
  • TransactionRecord.automaticTokenAssociations
  • AccountInfo.maxAutomaticTokenAssociations
  • AccountCreateTransaction.maxAutomaticTokenAssociations
  • AccountUpdateTransaction.maxAutomaticTokenAssociations
  • TokenRelationship.automaticAssociation
  • TokenAssociation