tests: add radius otp test

tests (radius-otp): add a check radcli version (atleast 1.2.7), since debian uses version
1.2.6, which does not support Access-Challenge server response.

tests: show debug messages only in VERBOSE mode

tests (radius-otp): replace test for option max_challenge to macro MAX_CHALLENGE

Signed-off-by: Alexey Dotsenko <lex@rwx.su>

tests/data/raddb/access_challenge

@@ -0,0 +1,19 @@
+#
+#	Configuration file for the rlm_attr_filter module.
+#	Please see rlm_attr_filter(5) manpage for more information.
+#
+#	$Id: 12ed619cf16f7322221ef2dfaf28f9c36c616e3c $
+#
+#	This configuration file is used to remove almost all of the
+#	attributes From an Access-Challenge message.  The RFCs say
+#	that an Access-Challenge packet can contain only a few
+#	attributes.  We enforce that here.
+#
+DEFAULT
+	EAP-Message =* ANY,
+	State =* ANY,
+	Message-Authenticator =* ANY,
+	Reply-Message =* ANY,
+	Proxy-State =* ANY,
+	Session-Timeout =* ANY,
+	Idle-Timeout =* ANY