add buda test files

buda: output files are <copy_file/>

html/user/buda_submit.php

@@ -243,6 +243,7 @@ function file_ref_out($i, $fname) {
 '        <file_ref>
             <file_name><OUTFILE_%d/></file_name>
             <open_name>%s</open_name>
+            <copy_file/>
         </file_ref>
 ',      $i, $fname
     );

samples/docker_wrapper/test_buda/Dockerfile_worker_1

@@ -0,0 +1,3 @@
+FROM debian
+WORKDIR /app
+CMD ./main_2.sh

samples/docker_wrapper/test_buda/main_2.sh

@@ -0,0 +1,3 @@
+#! /bin/bash
+
+worker_3_x86_64-pc-linux-gnu --nsecs 20 in out