feat: build proect for restproxy

proxy_c/third-lib/libcurl/tests/server/base64.pl

@@ -0,0 +1,9 @@
+#!/usr/bin/perl
+
+use MIME::Base64 qw(encode_base64);
+
+my $buf;
+while(read(STDIN, $buf, 60*57)) {
+    my $enc = encode_base64($buf);
+    print "$enc";
+}