bpi-fel-mass-storage-gui4win-v1.002

Add BPI-M3 support.

bpi-fel-mass-storage-gui4win-v1.001

Broad type detecting logic upgrade.
Set .NET Framework to 4.6.1

bpi-fel-mass-storage-gui4win-v1.001b

ATTENTION: This is a TEST RELEASE! ONLY for BPI-M2+(H3) and BPI-M64!

Absolutely NO any warranty!

大概说一说怎么用：

1. 按住BPI的FEL/U-Boot键，USB OTG连接电脑
2. 使用zadig安装libusbK WCID驱动
3. 打开bpi-fel-mass-storage-gui4win.exe按提示操作
4. 稍等一会儿
5. 显示盘符以后使用Win32DiskImager烧写

注：
目前暂时只支持M2+和M64。