sh testsuite: create hush-heredoc/* and move files around

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

shell/ash_test/ash-heredoc/heredoc5.right

@@ -0,0 +1,9 @@
+exit EOF-f
+"
+echo 1
+echo Hello World
+moo	 
+ EOF-f
+EOF-f   f
+EOF-f 
+Ok

shell/ash_test/ash-heredoc/heredoc5.tests

@@ -0,0 +1,12 @@
+f=1
+  cat <<- EOF-f
+		exit EOF-f
+"
+echo $f
+echo `echo Hello World`
+		moo	 
+ EOF-f
+EOF-f   f
+EOF-f 
+EOF-f
+echo Ok