[crux-contrib] Orphaning ports

I have been considering this for some time, but I'll now make it official. I am hereby orphaning all ports I am marked as maintainer for in opt and contrib. I will still be contributing to the CRUX project in maintaining my x86_64 multilib repositories and the portdb and anything else in general. However, my primary focus for the next 6 months is on completing my degree and I don't want the CRUX ports I'm maintaining to suffer because of this. I'll set up a wiki page after I send this email similar to what happened when sip retired. Anything that is not adopted, I will put in a private repo and add to the portdb. Hopefully, I'll have some time next year to be more involved again.