feat: build proect for restproxy

proxy_c/third-lib/libcurl/tests/data/test504

@@ -0,0 +1,44 @@
+<testcase>
+<info>
+<keywords>
+HTTP
+HTTP GET
+HTTP proxy
+multi
+FAILURE
+</keywords>
+</info>
+
+# Server-side
+<reply>
+</reply>
+
+# Client-side
+<client>
+<server>
+none
+</server>
+<features>
+http
+</features>
+# tool is what to use instead of 'curl'
+<tool>
+lib504
+</tool>
+
+ <name>
+simple multi through local proxy without listener
+ </name>
+ <command>
+http://%HOSTIP:%HTTPSPORT/504 %HOSTIP:55555
+</command>
+</client>
+
+# Verify data after the test has been "shot"
+# TEST_ERR_SUCCESS is errorcode 120
+<verify>
+<errorcode>
+120
+</errorcode>
+</verify>
+</testcase>