去掉一个多余的头文件

Signed-off-by: shines77 <gz_shines@msn.com>
增加了WaitHandle()和EventWaitHandle()类.

Signed-off-by: shines77 <gz_shines@msn.com>
类 ManualResetEvent 和 AutoResetEvent 基本完成.

Signed-off-by: shines77 <gz_shines@msn.com>