调用说明：
  regInfo.exe machinecode                      Get this machine's unique code
 
  regInfo.exe read licensefile                Read and display all license info
  regInfo.exe -f licensefile -field         Show specific field(s)
  regInfo.exe -f licensefile -verify          Verify license validity

Fields -name, -machinecode, -phone, -unit, -authdatetime, -over, -update

  注册文件校验错误Verify error codes
  0      valid 注册文件有效
  10001  license file invalid 文件无效
  10002  license expired (overdatetime) 过期
  10004  machine code mismatch  机器码不匹配

注册生成的json文件格式如下
  {name..., machinecode..., phone...,
   unit..., authdatetime..., overdatetime...,
   updatedatetime...}