1. DONE ./pkg/server/server.go make request
2. DONE make chain commands
3. DONE add help command
4. DONE env set/get
5. add simple tcp proxy:
	add tcp server host port
	add tcp client addr port
	add stream $id1 $id2

note:
	client connection maybe created on accept client or
	created on stream creation.
	In the latter case client will be multiplexer