added more examples

examples/tcpecho.clx

@@ -0,0 +1,16 @@
+#!/usr/bin/env clyx
+:: _main [
+  "Listening on port 1337..." puts cr
+  1337 nlstn # listen on port 1337
+  1 while [ # outer connection accept loop
+    dup read # accept a new connection -> conn_fd
+    1 # loop condition for client session loop
+    while [
+      dup read # read data
+      dup vlen 0 != # check if data is non-empty
+      if [ over swap write drop 1 ] [ drop 0 ]
+    ]
+    close # close the connection socket
+    1 # loop condition for outer server loop
+  ]
+]