Rap

- description: request interface
- Refactor: request_handle&core interface

- description: new middleware design&redis support
- Feature: server&client remove aes
- Feature: client add middleware feat
- Feature: server&client add aes middleware
- Feature: add server.response middleware
- Feature: middleware add redis support
- Feature: Ping&Pong, conn keep alive
- Refactor: server.load_middleware

- description: Distinguish server exceptions and execution function exceptions; better log output
- Refactor: Exceptions
- Feature: Complete server exception
- Feature: Complete execution func exception
- Refactor: log output

- description: hotfix
- Fix: server conn read recv data bug
- Fix: crypto error when client reconnect
- Fix: When the log level is not debug, the debug information will be calculated

- description: Faster&Humanize
- Feature: client&server support conn multiplexing(Faster~)
- Fix: read recv data bug
- Refactor: remove connection pool and connection lock

- description: Improve rpc protocol
- Fix: Aes bug
- Fix: declare life cycle response not timeout&nonce param
- Feature: Server check register func return param&param annotation
- Feature: support version
- Refactor: server response
- Refactor: server middleware
- Refactor: exceptions