user/xterm: upgrade to 343



See merge request !156

Bump a bunch of software, holy crap



See merge request !155

user/netsurf: new package



See merge request !146

user/perl-term-readkey: New package

Two things about which I'm not sure:

* `license="Artistic-1.0-Perl OR GPL-1.0-or-later"` appears to be the best description of the perl5 license, but I don't see any other user/perl-* packages using it.

* Is `pkgname=perl-term-readkey` reasonable, or should it be `perl-termreadkey`?

See merge request !152

user/haveged: new package

APKBUILD, patch, and OpenRC script imported from Alpine. Builds and runs on `x86_64`.

Note the OpenRC configuration file does not set any default options -- it may be desirable to set some default options there such as `-w 1024`, which I believe is common in other distributions.

See merge request !149