[HTTPS-E Rulesets] Add partyvan.eu

[WubTheCaptain]

There is full HTTPS support on all subdomains, including HSTS preloading.
 
    <ruleset name="Partyvan">
        <target host="partyvan.eu" />
        <target host="*.partyvan.eu" />
        <target host="mirror.*.partyvan.eu" />
    
        <test url="http://partyvan.eu/"; />
        <test url="http://www.partyvan.eu/"; />
        <test url="http://mirror.partyvan.eu/"; />
        <test url="http://mirror.se.partyvan.eu/"; />
    
        <rule from="^http:"
            to="https:" />
    </ruleset>
 
-Wub