hush testsuite: add many tests from ash testsuite

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
diff --git a/shell/hush_test/hush-misc/nulltick1.right b/shell/hush_test/hush-misc/nulltick1.right
new file mode 100644
index 0000000..f90b820
--- /dev/null
+++ b/shell/hush_test/hush-misc/nulltick1.right
@@ -0,0 +1,3 @@
+Test 1
+Test 2
+Done