1. fix bugs
2. add Python interface

1. fix bugs in previous release
2. add interface

1. now python interface can send and get data
2. fix bugs in previous version.

1. provide Python interface
2. fix bugs in data dispatch process
3. optimize code

1. fix corrupt bug in deinit of client
2. optimize the code for dll

only support Windows Socket, other communication method, for example, pipe, share memory, will be added in the following version.
The data is send/recv as raw data.
You can code refer to the main.c.

初步实现并调通，需要经过更详细的测试。
release the basic function, and the data path already work ok, but need more test.