feat: implement a simple tcp-server

.gitmodules

protocol/CMakeLists.txt

protocol/README.md

protocol/cmake/FindMsgPuck.cmake

protocol/cmake/FindTarantool.cmake

protocol/cmake/utils.cmake

protocol/cpath.lua

protocol/src/CMakeLists.txt

protocol/src/server/CMakeLists.txt

protocol/src/server/server.c

protocol/src/server/server.h

protocol/src/tarantool/CMakeLists.txt

protocol/src/tarantool/diag.h

protocol/src/tarantool/evio.c

protocol/src/tarantool/evio.h

protocol/src/tarantool/sio.c

protocol/src/tarantool/sio.h

protocol/src/tarantool/trivia/util.h

protocol/test-requirements.txt

protocol/test-run