Build exchange workspace and shared transaction services (#28)

frontend/packages/sxchnge_wallet/pubspec.yaml

@@ -0,0 +1,17 @@
+name: sxchnge_wallet
+description: Shared currency accounts, transaction flows and account preferences.
+version: 0.1.0
+publish_to: none
+environment:
+  sdk: '>=3.13.0 <4.0.0'
+  flutter: '>=3.47.0'
+dependencies:
+  flutter:
+    sdk: flutter
+  sxchnge_analytics:
+    path: ../sxchnge_analytics
+  sxchnge_kyc:
+    path: ../sxchnge_kyc
+dev_dependencies:
+  flutter_test:
+    sdk: flutter