Adds the `crypto' option to SecRemoteRules directive

Originally the SecRemoteRules fetch the rules from an remote server in an
specific format, using cryptography. This patch adds the possibility to
load rules in plain/text format.

apache2/msc_remote_rules.h

@@ -45,6 +45,7 @@ struct msc_remote_rules_server {
         const char *uri;
         const char *key;
         int amount_of_rules;
+	int crypto;
 };
 
 const char *msc_remote_invoke_cmd(const command_rec *cmd, cmd_parms *parms,