debug print of backend state, split test-stream into a netconf and restconf part, change restconf yang auth-type from leaf-list to leaf

test/lib.sh

@@ -334,6 +334,7 @@ stop_restconf(){
 # Wait for restconf to stop sending  502 Bad Gateway
 # @see start_restconf
 # Reasons for not working: if you run evhtp is nginx running?
+# @note assumes port=80 if RCPROTO=http and port=443 if RCPROTO=https
 wait_restconf(){
 # echo "curl $CURLOPTS $* $RCPROTO://localhost/restconf"
     hdr=$(curl $CURLOPTS $* $RCPROTO://localhost/restconf) 2> /dev/null