Bus-user

------------------------------
- [serialClient]:
- fix detects over base class!

------------------------------
- [serialClient]:
- extend write_read__last_validate for compare with list variants

------------------------------
- [serialClient]:
- add derivatives into INIT

------------------------------
- [serialClient]:
- add ADDRESSES__SYSTEM_FREE
- apply dict in ADDRESSES__SYSTEM
- add addresses__release/address__release
- rename buffers_clear*
- apply ADDRESS as property! and setter with address_release
- separate derivatives SerialClient_FirstFree/*

------------------------------
- [serialClient]:
- ensure keep all found ports in base class

------------------------------
- [values.py] move into funcs_aux!
- [serialClient]:
- add _clear_buffer__write/clear_buffers/write_eol
- add+finish tests for client data processing