i_pos_client_impl library

1. pos_client package
2. documentation
3. i_pos_client_impl.dart

pos_client package

1. Libraries
2. i_pos_client_impl
3. models/pos_events
4. models/pos_models
5. pos_client
6. pos_client_impl
7. services/i_pos_rpc_service
8. services/i_validator_service
9. services/models/query_models
10. services/models/result_models
11. services/pos_rpc_service
12. services/validator_service
13. utils/caip_validator
14. utils/errors
15. utils/extensions
16. utils/helpers