Add process snippets

UltiSnips/javascript-node.snippets

@@ -49,3 +49,17 @@ snippet edelete "express DELETE"
 ${1:app}.delete('${2}', ${3});
 endsnippet
 
+# process snippets
+
+snippet stdout "stdout"
+process.stdout
+endsnippet
+
+snippet stdin "stdin"
+process.stdin
+endsnippet
+
+snippet stderr "stderr"
+process.stderr
+endsnippet
+