message: Adjust the default max_connection to 100K.
diff: #define SW_ERROR_MSG_SIZE 8192
  #define SW_MAX_FILE_CONTENT (64*1024*1024) // for swoole_file_get_contents
  #define SW_MAX_LISTEN_PORT 60000
  -#define SW_MAX_CONNECTION 10000
  +#define SW_MAX_CONNECTION 100000
  #define SW_MAX_CONCURRENT_TASK 1024
  #define SW_STACK_BUFFER_SIZE 65536
  