add 230400 baud (ftdi usb serial )

Signed-off-by: Jean Jonethal <jean.jonethal@gigaset.com>
build win on command line

Signed-off-by: Jean Jonethal <jean.jonethal@gigaset.com>
some system identification

Signed-off-by: Jean Jonethal <jean.jonethal@gigaset.com>
Merge branch 'master' of https://github.com/ynezz/librs232.git

Conflicts:
	include/librs232/rs232_windows.h

Signed-off-by: Jean Jonethal <jean.jonethal@gigaset.com>