chore: import upstream snapshot with attribution

sshd/save_sync.cgi

@@ -0,0 +1,15 @@
+#!/usr/local/bin/perl
+# save_sync.cgi
+# Save options for the automatic setting up of SSH for new users
+
+require './sshd-lib.pl';
+&ReadParse();
+&lock_file("$module_config_directory/config");
+$config{'sync_create'} = $in{'create'};
+$config{'sync_auth'} = $in{'auth'};
+$config{'sync_pass'} = $in{'pass'};
+$config{'sync_type'} = $in{'type'};
+#$config{'sync_gnupg'} = $in{'gnupg'};
+&write_file("$module_config_directory/config", \%config);
+&unlock_file("$module_config_directory/config");
+&redirect("");