core/file_manager library

1. flutter_wallet_card package
2. documentation
3. core/file_manager.dart

flutter_wallet_card package

1. Libraries
2. core/android_wallet_platform
3. core/card_generator
4. core/file_manager
5. core/ios_wallet_platform
6. core/wallet_factory
7. core/wallet_platform
8. flutter_wallet_card
9. helpers/color
10. models/wallet_card