feat: Flutter support on all major platforms! (#1380)

Author: fundthmcalculus

dart/example/trustregistry_demo.dart

@@ -1,11 +1,15 @@
 import 'package:trinsic_dart/src/proto/services/trust-registry/v1/trust-registry.pbgrpc.dart';
+import 'package:trinsic_dart/src/proto/services/universal-wallet/v1/universal-wallet.pb.dart';
 import 'package:trinsic_dart/src/trinsic_util.dart';
 import 'package:trinsic_dart/trinsic.dart';
 import 'package:uuid/uuid.dart';
 
 Future runTrustRegistryDemo() async {
- var trinsic = TrinsicService(trinsicConfig(), null);
- var account = await trinsic.account().loginAnonymous("default");
+ var trinsic = TrinsicService(trinsicConfig());
+ var newWallet = await trinsic
+ .wallet()
+ .createWallet(CreateWalletRequest(ecosystemId: "default"));
+ trinsic.serviceOptions.authToken = newWallet.authToken;
 
  var uuid = Uuid();