Z3X BOX UPDATE Samsung Tool 2.28. 4 new models Added

Samsung Tool 2.28 Update:

Added support A137 for test - flash,unlock,imei repair.
Added support А226 for test - flash,unlock,imei repair.
Added support A227 for test - flash,unlock,imei repair.
Added support B270 - flash,unlock,imei repair.

Added new unlock method for swift and sysol phones.
Added code reading for swift and sysol phones.

Added info about selected model to program logs.

Fixed С200, С210, С230, E570 - flashing.
Fixed C450, D600, E760 - TFS flashing.
Fixed L700 code reading.