Report CTS status in FOSSIL driver (high when outbuf has some space)

Some programs (e.g. sbbs.exe v2.30) check for CTS (when configured/enabled for hardware flow control), so reflect the signal (Clear To Send) accurately.
14 jobs for master in 9 minutes and 56 seconds (queued for 14 seconds)
Status Job ID Name Coverage
  Build
passed #34927
FreeBSD
jsdoor-freebsd

00:03:52

passed #34928
Linux
jsdoor-linux

00:06:38

passed #34930
FreeBSD
jsdoor-windows

00:01:53

passed #34922
FreeBSD
sbbs-freebsd

00:05:20

passed #34917
Linux
sbbs-linux

00:09:50

passed #34920
Windows
sbbs-windows

00:04:55

passed #34929
FreeBSD
sexpots-freebsd

00:00:10

passed #34918
Linux
sexpots-linux

00:00:21

passed #34921
Windows
sexpots-windows

00:00:30

passed #34925
FreeBSD
syncdraw-freebsd

00:00:22

passed #34926
Linux
syncdraw-linux

00:01:04

passed #34923
FreeBSD
syncterm-freebsd

00:01:01

passed #34919
Linux
syncterm-linux

00:02:59

passed #34924
FreeBSD
syncterm-windows

00:01:43