Feat 0.2

[SwordofMorning]

1. change default port, message:20000, control:20001, send-back:50000;
2. chang dirs as 4 main parts: 2.1 src/buffer, buffer to storage log data; 2.2 src/controller, socket ctl interface; 2.3 formatter, write log to file; 2.4 logger, listen other process's log;
3. put other function to src/utils: 3.1 utils/config, load default config; 3.2 utils/socket, linux socket; 3.3 threadpool, logger(monitor) -> threadpool -> buffer;
4. More log level;
5. Formated log output;