message: fix(sdk-coin-hbar): expose transfer builder class
diff: @@ -3,6 +3,7 @@ import * as Utils from './utils';
  export { KeyPair } from './keyPair';
  export { Transaction } from './transaction';
  export { TransactionBuilderFactory } from './transactionBuilderFactory';
  +export { TransferBuilder } from './transferBuilder';
  export { CoinTransferBuilder } from './coinTransferBuilder';
  export { TokenTransferBuilder } from './tokenTransferBuilder';
  export { TokenAssociateBuilder } from './tokenAssociateBuilder';
  