tcp-server and tcp-client added

Readme.md

@@ -65,6 +65,7 @@ utils/local_install.sh
 (read-url "https://api.nasdaq.com/api/calendar/dividends/") ; hangs in sslclient.cpp line 132
 
 ### TODO
+- tcp-client, add support for list of requests returning list of responses
 - add debug support, at least call stack
 - multiline editing (see kilocpp editor)
 - execute system command should capture stderr
@@ -72,6 +73,7 @@ utils/local_install.sh
 
 #### Code
 - MlEnvironment::get should be map instead of many if's
+- tcpnet should use RAII
 - add documentation
 - add more unit test, mainly for usql
 - add instrumentation (time, nr of evals, num of atoms, debug info, debug environment etc)