Xhorse VVDI PROG update to V4.8.1


VVDI Prog latest software version V4.8.1 update

v4.8.1 (2018-3-19)
* This version DON't need update firmware
+ Add VVDI PROG USER MUNUAL 4.8.1 version in Doc folder
+ Add D80XX, D160XX, M35080XX, M35160XX options in <1-EEPROM&FLASH>->
+ Add XF-RFA(2013) options in <4-IMMOBILIZER>-> 
+ Add CX70(2018) options in <4-IMMOBILIZER>-> 
+ Add KARRY(2015) options in <5-DASHBOARD>-> 
+ Add BJ20(2016) options in <5-DASHBOARD>-> 
+ Add EQUINOX(2018) options in <7-AIRBAG>->