Update x11/xpra to 1.0.2

[rezny]

Summary

This is a significant update that I've been working on on and off for a while but without updating the port due to a functional regression as all newer versions depend on numpy which depends on fortran which needs the right libgcc_s.so, and that's a mess nobody seems able to untangle. So, I devised a hack to preload the correct library for the user so xpra works without LD_PRELOAD and the port can finally be updated. There are a number of new options for feartures added in the interim and a few new dependencies as well. The options were adjusted to only enable what should be well supported but all is available for users to try. I am now satisfied the new version is performing at least as well as the version we have had in ports.

Test Plan

Poudriere 10.3/11.0 amd64/i386 OK, run tested on 11 amd64

[swills]

Approved