tests: introduced new proxy protocol tests

This replaces the old no longer used "docker-tests".

Signed-off-by: Nikos Mavrogiannopoulos <n.mavrogiannopoulos@gmail.com>

tests/data/haproxy-proxyproto.cfg

@@ -0,0 +1,32 @@
+global
+	user haproxy
+	group haproxy
+	#daemon
+
+	# Default SSL material locations
+	#ca-base /etc/ssl/certs
+	#crt-base /etc/ssl/private
+
+	ssl-default-bind-ciphers kEECDH+aRSA+AES:kRSA+AES:+AES256:RC4-SHA:!kEDH:!LOW:!EXP:!MD5:!aNULL:!eNULL
+
+
+defaults
+	log	global
+	mode	http
+	option	dontlognull
+        timeout connect 5000
+        timeout client  50000
+        timeout server  50000
+
+frontend ssl
+	mode tcp
+	bind *:@HAPORT@
+	tcp-request inspect-delay 5s
+	tcp-request content accept if { req.ssl_hello_type 1 }
+
+use_backend ocserv
+
+backend ocserv
+	mode tcp
+#	option ssl-hello-chk
+	server server-vpn @ADDRESS@:@PORT@ check send-proxy-v2 send-proxy-v2-ssl-cn