Synchronet now requires the libarchive development package (e.g. libarchive-dev on Debian-based Linux distros, libarchive.org for more info) to build successfully.

Add SyncDraw builds for FreeBSD and Linux, fix FreeBSD artifacts.

The AMD64 platform on FreeBSD is called amd64, not x64.
10 jobs for master in 10 minutes and 24 seconds (queued for 6 seconds)
Status Job ID Name Coverage
  Build
passed #2237
FreeBSD
sbbs-freebsd

00:06:22

passed #2232
Linux
sbbs-linux

00:07:51

passed #2235
Windows
sbbs-windows

00:06:35

passed #2233
Linux
sexpots-linux

00:00:10

passed #2236
Windows
sexpots-windows

00:00:26

passed #2240
FreeBSD
syncdraw-freebsd

00:00:22

passed #2241
Linux
syncdraw-linux

00:00:25

passed #2238
FreeBSD
syncterm-freebsd

00:01:11

passed #2234
Linux
syncterm-linux

00:01:52

passed #2239
FreeBSD
syncterm-windows

00:02:19