(refactor) clean up top module

lib/accumulate_api.dart

@@ -5,14 +5,11 @@ export 'src/acme_client.dart';
 export 'src/model/api_types.dart';
 export 'src/encoding.dart';
 export 'src/client/lite_identity.dart';
-export 'src/client/lite_identity.dart';
 export 'src/model/factom.dart';
 export 'src/model/receipt_model.dart';
 export 'src/model/receipt.dart';
 export 'src/payload.dart';
 export 'src/payload_b.dart';
-export 'src/payload_b.dart';
-export 'src/model/receipt.dart';
 export 'src/client/signature_type.dart';
 export 'src/client/signer.dart';
 export 'src/signing/ed25519_keypair.dart';
@@ -22,5 +19,6 @@ export 'src/transaction.dart';
 export 'src/client/tx_signer.dart';
 export 'src/client/tx_types.dart';
 export 'src/utils/utils.dart';
+export 'src/utils/proof.dart';
 export 'src/rpc_client.dart';
 export 'src/signing/rcd.dart';

pubspec.yaml

@@ -1,18 +1,15 @@
 name: accumulate_api
 description: Dart client for Accumulate blockchain, defines basic models and API calls to work with network, supports all types of accounts.
 repository: https://github.com/kompendium-ano/accumulate-dart-client
-version: 0.3.0
+version: 0.3.1
 
 environment:
   sdk: '>=2.13.4 <4.0.0'
 
 dependencies:
   crypto: ^3.0.2
   base58check: ^2.0.0
-  bitcoin_bip44:
-    git:
-      url: https://github.com/sigrlami/bitcoin_bip44.git
-      ref: master
+  bitcoin_bip44_ng: ^0.1.5
   bip39: ^1.0.6
   bs58: ^1.0.2
   ed25519_edwards: ^0.3.1