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

6. DONE check variable name
7. DONE substitute variable over query (maybe)