Support seppart tag naming for separate screens

Signed-off-by: Markus Lehtonen <markus.lehtonen@linux.intel.com>
Make VirtualBox windows floating

Signed-off-by: Markus Lehtonen <markus.lehtonen@linux.intel.com>
Set number of master windows to 2

Signed-off-by: Markus Lehtonen <markus.lehtonen@linux.intel.com>