ids.cgi: Re-add code to save the ruleset.

ids.cgi: Re-add code to save the ruleset.

The manually enabled or disabled rules by the user now will be written
to own config files, which will be used by oinkmaster to keep these rules
in the same state after a rules update has been performed.

In short words, if you adjust your ruleset, the changes will not be lost
again if you perform an update of your ruleset.

* Grabbing and storing the cgi values now in an own hash (%cgiparams)
* Introducing oinkmaster config files for enabled and disabled rules.

Signed-off-by: Stefan Schantl <stefan.schantl@ipfire.org>