rm no need head file.
device project no need set mfc_target
rm no need UsbCmd struct define.
implement some osc device function
add namespace comment
device_delegate add ctor and dtor implement.
add scope_ctrl_register and it's unittest
mv device_info to canscope/device/register/
mv relate device_info constant to canscope_device_constant.h
soft_diff_register add sys_cfg property
increase device operate time out
reset pipes after close device handle
ReadEP3 fix Bug:
return false when SendCmd() false.
ReadPort id is kPort3
add GetDeviceInfo() function.
change set register function to private
add Start() and IsCollected() function
add usb_port_device_delegate(implement device_delegate use UsbPort)
add osc_device_unittest.cc (test canscope osc device data read and config)
add new file to canscope_device.gyp